Compound vibration high-frequency screen
By designing a high-frequency vibrating screen, the high-frequency impact of the vibrating motor and the exciter plate solves the problems of low screening efficiency and screen clogging in existing circular vibrating screens, achieving a wide range of screening effects and anti-clogging effects.
Patent Information
- Application Number
- CN202520170266.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-01-25
AI Technical Summary
Existing circular vibrating screens have low efficiency in screening fine materials and the screens are prone to clogging, with a limited screening range.
The high-frequency vibrating screen is a composite vibrating screen. The screen box is driven to vibrate by a vibrating motor, and the screen mesh is struck frequently by an exciter plate and an exciter assembly. Combined with the multi-layer screen design, the screening range is increased and clogging is prevented.
It improves the screening efficiency of fine materials, expands the screening range, and effectively prevents screen clogging, making it suitable for screening both dry and wet materials.
Smart Images
Figure CN223832814U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of material screening, and in particular to a composite high-frequency screen. Background Technology
[0002] A circular vibrating screen, also known as a vibrating sieve, sieving machine, or screening machine, is a screening machine that works by utilizing the reciprocating rotary vibration generated by a vibrator. Circular vibrating screens are widely used for product grading in industries such as mining, building materials, transportation, energy, and chemicals. Existing circular vibrating screens are mainly used for screening large materials, with a limited screening range. They are inefficient for screening fine materials, and the screen is prone to clogging. Utility Model Content
[0003] This utility model provides a high-frequency vibrating screen that increases the screening range, improves material screening efficiency, and reduces screen clogging.
[0004] A complex vibrating high-frequency screen adopts the following technical solution:
[0005] A high-frequency vibrating screen includes a screen box with a partition fixed inside, dividing the screen box into two parts. Each part is provided with a first screen and a second screen. Support bars for supporting the first and second screens are fixed on the inner wall of the screen box and on the partition. A screen fastening assembly for locking and fixing the first and second screens is installed on the side wall of the screen box. Multiple excitation rods are provided below the first and second screens, and the excitation rods are rotatably connected between the partition and the inner wall of the screen box. A support plate is fixed on the excitation rod, and an excitation plate that can contact the first or second screen is fixed on the support plate. A vibration motor is fixed on the outer wall of the screen box, and an excitation assembly for driving the excitation rods to rotate is installed on the outer wall of the screen box.
[0006] Furthermore, the excitation assembly includes an electromagnetic box, an electromagnet, and a straight iron block. The electromagnetic box is fixed to the outer wall of the screen box, the electromagnet is fixed to the inner wall of the electromagnetic box, the straight iron block is located below the electromagnet and there is a gap between them. A transmission rod is connected to the bottom of the straight iron block. A first rubber block is installed between the straight iron block and the inner wall of the electromagnetic box away from the electromagnet. The bottom of the transmission rod extends out of the electromagnetic box, and two third rubber blocks are sleeved on the transmission rod. One end of the excitation rod extends out of the side wall of the screen box and is connected to a vibration transmission rod. The end of the vibration transmission rod away from the excitation rod is located between the two third rubber blocks. The transmission rod passes through the vibration transmission rod, and a locking nut that is threadedly connected to the transmission rod is provided at the bottom of the lower third rubber block.
[0007] Furthermore, a connecting plate is provided below the electromagnetic box, and a second rubber block is provided between the connecting plate and the bottom of the electromagnetic box, while a third rubber block above it contacts the connecting plate.
[0008] Furthermore, the screen fastening assembly includes a first fastening shaft and a second fastening shaft, both of which are rotatably connected between the partition and the inner wall of the screen box. One end of the first fastening shaft extends out of the side wall of the screen box and is fixed with a first handle, and one end of the second fastening shaft extends out of the side wall of the screen box and is fixed with a second handle. Short plates are fixed above both the first and second fastening shafts, and long plates are fixed below both the first and second fastening shafts. Hooks are provided at both ends of the first and second screens. Two channel steels are fixed between the partition and the inner wall of the screen box. One channel steel is located on the side of the first screen away from the second screen, and the other channel steel is located on the side of the second screen closer to the first screen. One end of the first screen is hooked onto the channel steel, and the other end of the first screen is hooked onto the short plate on the first fastening shaft. One end of the second screen is hooked onto the channel steel, and the other end of the second screen is hooked onto the short plate on the second fastening shaft. A tensioner is connected between the first handle and the second handle to tighten the first and second handles, and a spring is connected between the tensioner and the first or second handle.
[0009] Furthermore, the long plate below the first fastening shaft presses against the second screen.
[0010] Compared with the prior art, the present invention has the following technical effects:
[0011] This practical high-frequency vibrating screen improves the screening effect of materials by using a vibrating motor to vibrate the screen box and an agitator plate to beat the screen mesh. It also prevents screen clogging by striking the screen mesh at high frequency. Attached Figure Description
[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of it, do not constitute a limitation thereof. In the drawings:
[0013] Figure 1 This is a schematic diagram illustrating the overall structure of the present invention;
[0014] Figure 2 This is a schematic diagram illustrating the screen fastening assembly in this utility model;
[0015] Figure 3 A schematic diagram illustrating the short and long boards in this utility model;
[0016] Figure 4 A schematic diagram illustrating the impact rod and impact plate in this utility model;
[0017] Figure 5 A schematic diagram illustrating the excitation assembly in this utility model;
[0018] Figure 6 To reflect Figure 5 A cross-sectional schematic diagram of AA.
[0019] Explanation of reference numerals in the attached drawings: 1. Screen box; 11. Feed box; 12. Support beam; 13. Support bar; 131. First screen; 132. Second screen; 14. Support shaft; 15. Shock-absorbing support seat; 16. Vibration motor; 17. Partition plate; 171. Channel steel; 2. Screen fastening assembly; 21. First fastening shaft; 211. Short plate; 212. Long plate; 213. First handle; 22. Second fastening shaft; 221. 23. Handle; 231. Wire tensioner; 232. Handle; 24. Spring; 3. Stimulator rod; 31. Support plate; 32. Stimulator plate; 4. Vibration assembly; 41. Electromagnetic box; 411. Base plate; 42. Electromagnet; 43. Straight iron; 44. First rubber block; 441. Second rubber block; 442. Third rubber block; 45. Vibration transmission rod; 46. Connecting plate; 47. Locking nut; 48. Transmission rod. Detailed Implementation
[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. Here, the illustrative embodiments and descriptions of this utility model are used to explain the present utility model, but are not intended to limit the present utility model.
[0021] Reference Figures 1-6 A high-frequency vibrating screen includes a screen box 1, a feed box 11 fixed to one end of the screen box 1, a support shaft 14 fixed to the outer wall of the screen box 1, and the support shaft 14 installed in a shock-absorbing support seat 15. A vibration motor 16 is fixed to the outer wall of the screen box 1. A partition 17 is provided inside the screen box 1, the length direction of the partition 17 is arranged along the length direction of the screen box 1, and both ends of the partition 17 are fixed to the inner wall of the screen box 1.
[0022] The partition 17 divides the internal space of the sieve box 1 into two parts, each of which is equipped with a first screen 131 and a second screen 132. Hooks are provided at both ends of the first screen 131 and the second screen 132. Support bars 13 are fixed to the inner wall of the sieve box 1, parallel to the partition 17, and also to the partition 17. The support bars 13 support either the first screen 131 or the second screen 132. Dividing the interior of the sieve box 1 into two parts, each equipped with a first screen and a second screen, reduces the width and length of the screens, thereby increasing their stability.
[0023] A support beam 12 is fixed between the partition 17 and the inner wall of the screen box 1. The support beam 12 is used to increase the stability between the partition 17 and the screen box 1. The first screen 131 is located on the side closer to the feed box 11, and the second screen 132 is located on the side of the first screen 131 away from the feed box 11. The height of the second screen 132 is lower than the height of the first screen 131. A screen fastening assembly 2 is provided on the outer wall of the screen box 1 to fix the first screen 131 and the second screen 132.
[0024] Reference Figure 2 and Figure 3 The screen fastening assembly 2 includes a first fastening shaft 21, which is rotatably connected between the partition 17 and the side wall of the screen. A short plate 211 is fixed above the first fastening shaft 21, and a long plate 212 is fixed below the first fastening shaft 21. Channel steel 171 is fixed to the side of both the first screen 131 and the second screen 132 near the feed box 11. The channel steel 171 is fixed between the partition 17 and the inner wall of the screen box 1. The hook of the first screen 131 near the feed box 11 is hooked onto the channel steel 171. The hook of the first screen 131 away from the feed box 11 is hooked onto the short plate 211 on the first fastening shaft 21. One end of the first fastening shaft 21 extends out of the side wall of the screen box 1 and is fixed with a first handle 213. The side of the long plate 212 below the first fastening shaft 21 away from the first fastening shaft 21 presses against the second screen 132, increasing the stability of the second screen 132.
[0025] A second fastening shaft 22 is provided on the side of the second screen 132 away from the first screen 131. The second fastening shaft 22 is rotatably connected between the partition plate 17 and the side wall of the screen box 1. A short plate 211 is also fixed above the second fastening shaft 22. The hook at the end of the second screen 132 near the first screen 131 is hooked onto the channel steel 171, and the end of the second screen 132 away from the first screen 131 is hooked onto the short plate 211 of the second fastening shaft 22. One end of the second fastening shaft 22 extends out of the side wall of the screen box 1 and is fixed with a second handle 221. A tensioner 23 is connected between the first handle 213 and the second handle 221. The tensioner 23 is an aluminum alloy chain tensioner 23 (this is prior art and will not be described in detail here). A spring 24 is connected between the tensioner 23 and the first handle 213 or between the tensioner 23 and the second handle 221.
[0026] Rotating the handle 232 of the tensioner 23 adjusts the length of the chain 231. When the first screen 131 and the second screen 132 are fixed, adjusting the chain 231 shortens the chain, causing the first handle 213 and the second handle 221 to tend to move closer to each other. This causes the hook on the first screen 131 to hook onto the short plate 211 on the first fastening shaft 21, and the hook on the second screen 132 to hook onto the short plate 211 on the second fastening shaft 22.
[0027] Multiple agitator rods 3 are installed below the first screen 131 and the second screen 132. One end of the agitator rod 3 is rotatably connected to the partition plate 17, and the other end is rotatably connected to the side wall of the screen box 1. A support plate 31 is fixed on the agitator rod 3, and an agitator plate 32 is fixed on the support plate 31. The agitator plate 32 can contact the first screen 131 or the second screen 132. The agitator plate 32 is a polyurethane plate. The agitator rod 3 extends out of the side wall of the screen box 1, and a vibration assembly 4 is installed on the side wall of the screen box 1 to drive the agitator rod 3 to swing. The vibration assembly 4 can drive the agitator rod 3 to swing back and forth slightly along the axis of the agitator rod 3.
[0028] The excitation assembly 4 includes an electromagnetic box 41, an electromagnet 42, and a straight iron block 43. The electromagnetic box 41 is fixed to the side wall of the screen box 1, the electromagnet 42 is fixed to the inner wall of the electromagnetic box 41, and the straight iron block 43 is located below the electromagnet 42. There is a gap of about 6-8 mm between the electromagnet 42 and the straight iron block 43. One end of the transmission rod 48 is located inside the electromagnetic box 41 and is fixed to a base plate 411. The straight iron block 43 is fixed to the base plate 411. A first rubber block 44 is fixed between the base plate 411 and the inner wall of the electromagnetic box 41 away from the electromagnet 42. A connecting plate 46 is provided below the electromagnetic box 41. The transmission rod 48 passes through the center of the connecting plate 46. A second rubber block 441 is installed between the connecting plate 46 and the bottom of the electromagnetic box 41. A vibration transmission rod 45 is provided below the connecting plate 46. One end of the vibration transmission rod 45 is sleeved on the transmission rod 48. A third rubber block 442 is provided on both the upper and lower sides of the vibration transmission rod 45. A locking nut 47 that is threadedly connected to the transmission rod 48 is provided below the lower third rubber block 442.
[0029] When the electromagnet 42 is not energized, the excitation plate 32 on the excitation rod 3 is tightly pressed against the first screen 131 or the second screen 132, simultaneously supporting the first screen 131 or the second screen 132. At the same time, all components of the excitation assembly 4 are in their initial state, with a gap of approximately 6-8 mm between the electromagnet 42 and the straight iron 43. After energization, the electromagnet 42 magnetically attracts the straight iron 43, which in turn drives the transmission rod 48 connected to it. The transmission rod 48 compresses the third rubber block 442, thereby causing the end of the vibration transmission rod 45 near the transmission rod 48 to move up and down. This causes the vibration transmission rod 45 to rotate around the excitation rod 3, thus rotating the excitation rod 3. When the power is off, all components reset under the action of the first rubber block 44, the second rubber block 441, and the third rubber block 442. The material enters the screen box 1 from the feed box 11, and then passes through the first screen 131 and the second screen 132 to screen the material. Through the action of the excitation plate 32 and the excitation component 4, the screen can be hit at a frequency of 3000-4600 times per minute with an amplitude of 1-3mm. A strong vibration of 5-8mm can be designed every few minutes for screen cleaning.
[0030] This practical high-frequency vibrating screen improves material screening efficiency by using a vibrating motor 16, a vibrating screen box 1, and an excitation plate 32 to vibrate the screen mesh. High-frequency vibration of the screen mesh also prevents clogging. This device can screen materials from 200 mesh to 30mm, and is not limited to dry materials; it can also be used for washing and screening. It can be designed as a single-layer, double-layer, or multi-layer screen. The vibrating motor 16 is used for screening large materials, while the electromagnetic array is used for screening small materials. This device has a wide screening range; one screen can screen materials from 200 mesh to 30mm. Screen replacement is convenient, saving labor. The screen has a wide range of applications, suitable for both washing and drying materials. High-frequency vibration of the screen mesh prevents clogging and improves screening efficiency.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.
Claims
1. A complex vibrating high-frequency screen, characterized in that, The sieve box (1) includes a partition (17) fixed inside the sieve box (1), which divides the sieve box (1) into two parts. Each part is provided with a first sieve (131) and a second sieve (132). Support bars (13) for supporting the first sieve (131) and the second sieve (132) are fixed on the inner wall of the sieve box (1) and on the partition (17). A sieve fastening assembly (2) for locking and fixing the first sieve (131) and the second sieve (132) is installed on the side wall of the sieve box (1). Multiple agitators (3) are provided below the first screen (131) and the second screen (132). The agitators (3) are rotatably connected between the partition (17) and the inner wall of the screen box (1). A support plate (31) is fixed on the agitator (3). An agitator plate (32) that can contact the first screen (131) or the second screen (132) is fixed on the support plate (31). A vibration motor (16) is fixed on the outer wall of the screen box (1). An excitation assembly (4) that drives the agitators (3) to rotate is installed on the outer wall of the screen box (1).
2. The complex vibration high-frequency screen according to claim 1, characterized in that, The excitation assembly (4) includes an electromagnetic box (41), an electromagnet (42), and a straight block (43). The electromagnetic box (41) is fixed on the outer wall of the sieve box (1), the electromagnet (42) is fixed on the inner wall of the electromagnetic box (41), the straight block (43) is located below the electromagnet (42) and there is a gap between it and the electromagnet (42). A transmission rod (48) is connected to the bottom of the straight block (43), and a first rubber block (44) is installed between the straight block (43) and the inner wall of the electromagnetic box (41) away from the electromagnet (42). The bottom of the transmission rod (48) extends out of the electromagnetic box (41). Two third rubber blocks (442) are sleeved on the transmission rod (48) and set up vertically. One end of the excitation rod (3) extends out of the side wall of the screen box (1) and is connected to the vibration transmission rod (45). The end of the vibration transmission rod (45) away from the excitation rod (3) is located between the two third rubber blocks (442). The transmission rod (48) passes through the vibration transmission rod (45). The bottom of the lower third rubber block (442) is provided with a locking nut (47) that is threadedly connected to the transmission rod (48).
3. The complex vibration high-frequency screen according to claim 2, characterized in that, A connecting plate (46) is provided below the electromagnetic box (41). A second rubber block (441) is provided on the bottom of the connecting plate (46) and the electromagnetic box (41). A third rubber block (442) is located above and contacts the connecting plate (46).
4. The complex vibration high-frequency screen according to claim 1, characterized in that, The screen fastening assembly (2) includes a first fastening shaft (21) and a second fastening shaft (22). Both the first fastening shaft (21) and the second fastening shaft (22) are rotatably connected between the partition (17) and the inner wall of the screen box (1). One end of the first fastening shaft (21) extends out of the side wall of the screen box (1) and is fixed with a first handle (213). One end of the second fastening shaft (22) extends out of the side wall of the screen box (1) and is fixed with a second handle (221). Short plates (211) are fixed above the first fastening shaft (21) and the second fastening shaft (22). Long plates (212) are fixed below the first fastening shaft (21) and the second fastening shaft (22). Hooks are provided at both ends of the first screen (131) and the second screen (132). Two channel steels (171) are fixed between the partition (17) and the inner wall of the screen box (1). One of the channel steels (171) is... 171) Located on the side of the first screen (131) away from the second screen (132), another channel steel (171) is located on the side of the second screen (132) close to the first screen (131). One end of the first screen (131) is hooked on the channel steel (171), and the other end of the first screen (131) is hooked on the short plate (211) on the first fastening shaft (21). One end of the second screen (132) is hooked on the channel steel (171), and the other end of the second screen (132) is hooked on the short plate (211) on the second fastening shaft (22). A tensioner (23) is connected between the first handle (213) and the second handle (221) to tighten the first handle (213) and the second handle (221). A spring (24) is connected between the tensioner (23) and the first handle (213) or the second handle (221).
5. The complex vibration high-frequency screen according to claim 4, characterized in that, The long plate (212) below the first fastening shaft (21) presses on the second screen (132).