Novel electromagnetic drive rotary vibration screen

Abstract

The utility model relates to a novel electromagnetic drive rotary vibration screen, including screen frame, support and electromagnetic drive mechanism, screen frame sets up on the support, and electromagnetic drive mechanism includes connecting plate, armature, electromagnet, elastic support plate and base, connecting plate sets up in the screen frame bottom, and the base sets up under connecting plate, and both are connected through multiple obliquely arranged elastic support plates, armature sets up on connecting plate, electromagnet sets up on the base, and the gap is left between armature and electromagnet, and electromagnet can be attracted with armature. The utility model will replace the traditional vibration motor for electromagnetic drive mechanism, generates reciprocating centrifugal force, to this carries out material screening, can dynamically adjust the amplitude and frequency of vibration in the equipment operation, improves production efficiency, and after using electromagnetic drive, can reach the effect of immediate start and immediate stop, and the equipment does not have obvious swing after stopping, guarantees the safety of on -the -spot operator.

Description

Technical Field

[0001] This utility model belongs to the field of rotary vibrating screen technology, and specifically relates to a novel electromagnetically driven rotary vibrating screen. Background Technology

[0002] A vibrating screen is a high-precision fine powder screening machine. It features low noise, high efficiency, and quick screen replacement (3-5 minutes). Its fully enclosed structure makes it suitable for screening and filtering granular, powdery, and viscous materials. The vibrating screen uses a vertical motor as the excitation source. Eccentric weights are installed at both the upper and lower ends of the motor, converting the motor's rotational motion into three-dimensional motion (horizontal, vertical, and inclined), which is then transmitted to the screen surface. Adjusting the phase angle at the upper and lower ends changes the trajectory of the material on the screen surface.

[0003] However, existing rotary vibrating screens cannot adjust the amplitude / frequency while in operation and can only be adjusted after the machine is stopped, which reduces the production efficiency of enterprises. Moreover, the rotary vibrating screen swings greatly when starting / stopping, which poses indirect safety hazards to on-site personnel. Utility Model Content

[0004] In view of this, the purpose of this utility model is to address the shortcomings of the existing technology by providing a new type of electromagnetically driven vibrating screen, which can adjust the amplitude and frequency of vibration during equipment operation, thereby improving production efficiency and production safety.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A novel electromagnetically driven vibrating screen includes a screen frame, a support, and an electromagnetic drive mechanism. The screen frame is mounted on the support. The electromagnetic drive mechanism includes a connecting plate, an armature, an electromagnet, an elastic support plate, and a base. The connecting plate is located at the bottom of the screen frame, and the base is located below the connecting plate. The two are connected by multiple inclined elastic support plates. The armature is mounted on the connecting plate, and the electromagnet is mounted on the base. A gap is left between the armature and the electromagnet, allowing the electromagnet to attract the armature.

[0007] To better realize this utility model, the above structure is further optimized, and the elastic support plate is a carbon fiber plate.

[0008] To better realize this utility model, the above structure is further optimized, all elastic support plates are evenly arranged along the circumferential direction, and all elastic support plates have the same inclination direction.

[0009] To better realize this utility model, the above structure is further optimized by providing an upper fixing member on the connecting plate, and the top of the elastic support plate is inclinedly arranged on the upper fixing member.

[0010] To better realize this utility model, the above structure is further optimized by providing a lower fixing member on the base and an elastic support plate with its bottom inclinedly arranged on the lower fixing member.

[0011] To better realize this utility model, the above structure is further optimized, and the base is a counterweight plate.

[0012] To better realize this utility model, the above structure is further optimized. The support includes multiple columns and rubber shock absorbers set on each column. The columns are connected to the screen frame through the rubber shock absorbers.

[0013] To better realize this utility model, the above structure is further optimized. The screen frame includes an upper screen frame and a lower screen frame. The upper screen frame is set on top of the lower screen frame, and a screen mesh is set between the upper screen frame and the lower screen frame.

[0014] To better realize this utility model, the above structure is further optimized by providing a binding ring assembly on both the upper and lower screen frames.

[0015] To better realize this utility model, the above structure is further optimized. A material inlet is provided at the top of the upper screen frame, and a discharge port is provided on the side of both the upper and lower screen frames.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] This utility model provides a novel electromagnetically driven vibrating screen that replaces the traditional vibrating motor with an electromagnetic drive mechanism. It utilizes the continuous up-and-down attraction force generated by the electromagnet and armature to cause the elastic support plate to deform and reset intermittently during the magnetic attraction, performing a reciprocating motion. Simultaneously, it drives the screen frame to move together, generating reciprocating centrifugal force for material screening. During operation, the amplitude and frequency of vibration can be dynamically adjusted, improving production efficiency. Furthermore, the electromagnetic drive allows for immediate start and stop, with no significant swaying after the equipment stops, ensuring the safety of on-site operators. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is an isometric view of the novel electromagnetically driven vibrating screen of this utility model;

[0020] Figure 2This is a front view of the novel electromagnetically driven vibrating screen of this utility model;

[0021] Figure 3 This is a top view of the novel electromagnetically driven vibrating screen of this utility model;

[0022] Figure 4 yes Figure 3 Sectional view of AA;

[0023] Figure 5 This is a schematic diagram of the electromagnetic drive mechanism in this utility model.

[0024] In the picture:

[0025] 1-Sieve frame, 101-Upper sieve frame, 102-Lower sieve frame, 103-Sieve mesh, 104-Binding ring assembly, 2-Bracket, 201-Column, 202-Rubber shock absorber block, 3-Connecting plate, 301-Upper fixing part, 4-Armature, 5-Electromagnet, 6-Elastic support plate, 7-Base, 701-Lower fixing part. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] In the description of this utility model, it should be noted that, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Please refer to Figures 1-5 This utility model provides a novel electromagnetically driven vibrating screen, comprising a screen frame 1, a support 2, and an electromagnetic drive mechanism. The screen frame 1 is mounted on the support 2. The electromagnetic drive mechanism includes a connecting plate 3, an armature 4, an electromagnet 5, an elastic support plate 6, and a base 7. The connecting plate 3 is located at the bottom of the screen frame 1, and the base 7 is located below the connecting plate 3, with the two connected by multiple inclined elastic support plates 6. The armature 4 is mounted on the connecting plate 3, and the electromagnet 5 is mounted on the base 7. A gap is left between the armature 4 and the electromagnet 5, allowing the electromagnet 5 to be attracted to the armature 4. The electromagnet 5 and the armature 4 continuously generate an up-and-down attraction force, causing the elastic support plate 6 to continuously deform and reset during the intermittent magnetic attraction, resulting in a reciprocating motion. This, in turn, drives the screen frame 1 to move together, generating a reciprocating centrifugal force for material screening. This application allows for dynamic adjustment of the amplitude and frequency of vibration by changing the magnitude of the current during equipment operation, thereby improving production efficiency. Furthermore, with electromagnetic drive, the equipment can be started and stopped immediately by switching the power supply on or off, eliminating the traditional inertial force and ensuring the safety of on-site operators by preventing significant swaying after the equipment stops.

[0030] In this embodiment, the elastic support plate 6 is made of carbon fiber, which has a density only 1 / 4 to 1 / 5 that of steel, but a tensile strength 7 to 9 times that of steel and an elastic modulus as high as 185,000 N / mm². 2 It exhibits stable performance over long-term use and has superior fatigue resistance compared to metallic materials, making it highly suitable for dynamic load environments. Furthermore, all the elastic support plates 6 are uniformly arranged along the circumference, and all the elastic support plates 6 have the same inclination direction. During the reciprocating motion, the elastic support plates 6 with the same inclination direction exert force in the same direction, and the direction of the force is the same as the direction of movement of the elastic support plates 6. This causes the screen frame 1 above the elastic support plates 6 to simultaneously move slightly back and forth clockwise or counterclockwise, driving the material inside the screen frame 1 to rotate and vibrate, resulting in more thorough agitation of the material and improved screening efficiency.

[0031] To improve the connection's strength, the connecting plate 3 is equipped with an upper fixing member 301, which has an inclined plane. The top of the elastic support plate 6 is inclinedly mounted on the upper fixing member 301 and secured with screws. Simultaneously, the base 7 is equipped with a lower fixing member 701, which also has an inclined plane. The bottom of the elastic support plate 6 is inclinedly mounted on the lower fixing member 701 and secured with screws. These two fixing members, one upper and one lower, provide better support and connection for the elastic support plate 6.

[0032] To better realize this utility model, further optimizations are made to the above structure. The base 7 is a counterweight plate. The counterweight plate increases the weight of the screen body to help balance the excitation force, ensuring that the screen body remains stable during vibration and avoiding vibration instability or damage caused by weight imbalance.

[0033] The support frame 2 includes multiple columns 201 and rubber damping blocks 202 disposed on each column 201. The columns 201 are connected to the screen frame 1 through the rubber damping blocks 202. By setting the rubber damping blocks 202 between the screen frame 1 and the columns 201, most of the vibration is isolated, which can effectively reduce the vibration transmitted to the ground.

[0034] In this embodiment, the screen frame 1 includes an upper screen frame 101 and a lower screen frame 102. The upper screen frame 101 is located on top of the lower screen frame 102, and a screen mesh 103 is disposed between the upper screen frame 101 and the lower screen frame 102. Both the upper screen frame 101 and the lower screen frame 102 are provided with a retaining ring assembly 104 for locking the screen frame. The top of the upper screen frame 101 is provided with a material inlet, and both the upper screen frame 101 and the lower screen frame 102 have discharge ports on their sides. In use, the material enters the interior of the upper screen frame 101 from the bottom inlet. During vibration, finer particles pass through the screen mesh 103 and enter the interior of the lower screen frame 102, thereby separating the material into two types: large particles and small particles, which are discharged separately from the two discharge ports.

[0035] During operation, the material is poured in from the material inlet at the top of the upper screen frame 101. Under the vibration of the electromagnetic drive mechanism, small particles of material pass through the screen 103 and enter the lower screen frame 102 below, and are discharged through the discharge port on the side of the lower screen frame 102; while large particles of material are discharged through the discharge port on the side of the upper screen frame 101, thus completing the screening of the material.

[0036] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel electromagnetically driven vibrating screen, comprising a screen frame (1), a support (2), and an electromagnetic drive mechanism, wherein the screen frame (1) is mounted on the support (2), characterized in that: The electromagnetic drive mechanism includes a connecting plate (3), an armature (4), an electromagnet (5), an elastic support plate (6), and a base (7). The connecting plate (3) is located at the bottom of the screen frame (1), and the base (7) is located below the connecting plate (3). The two are connected by multiple inclined elastic support plates (6). The armature (4) is located on the connecting plate (3), and the electromagnet (5) is located on the base (7). There is a gap between the armature (4) and the electromagnet (5), and the electromagnet (5) can be attracted to the armature (4).

2. The novel electromagnetically driven vibrating screen according to claim 1, characterized in that: The elastic support plate (6) is a carbon fiber plate.

3. The novel electromagnetically driven vibrating screen according to claim 2, characterized in that: All of the elastic support plates (6) are uniformly arranged along the circumferential direction, and all of the elastic support plates (6) have the same inclination direction.

4. A novel electromagnetically driven vibrating screen according to claim 3, characterized in that: The connecting plate (3) is provided with an upper fixing member (301), and the top of the elastic support plate (6) is inclinedly arranged on the upper fixing member (301).

5. A novel electromagnetically driven vibrating screen according to claim 4, characterized in that: The base (7) is provided with a lower fixing member (701), and the bottom of the elastic support plate (6) is inclinedly disposed on the lower fixing member (701).

6. A novel electromagnetically driven vibrating screen according to claim 5, characterized in that: The base (7) is a counterweight plate.

7. A novel electromagnetically driven vibrating screen according to claim 1, characterized in that: The support (2) includes a plurality of columns (201) and rubber shock absorbers (202) disposed on each of the columns (201), and the columns (201) are connected to the screen frame (1) through the rubber shock absorbers (202).

8. A novel electromagnetically driven vibrating screen according to claim 1, characterized in that: The sieve frame (1) includes an upper sieve frame (101) and a lower sieve frame (102). The upper sieve frame (101) is located on top of the lower sieve frame (102), and a sieve mesh (103) is provided between the upper sieve frame (101) and the lower sieve frame (102).

9. A novel electromagnetically driven vibrating screen according to claim 8, characterized in that: Both the upper sieve frame (101) and the lower sieve frame (102) are provided with a clamping ring assembly (104).

10. A novel electromagnetically driven vibrating screen according to claim 9, characterized in that: The upper screen frame (101) is provided with a material inlet at the top, and the upper screen frame (101) and the lower screen frame (102) are provided with discharge ports on their sides.

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