Aluminum powder vibrating screen

Abstract

The utility model provides a kind of aluminum powder vibrating screen.The aluminum powder vibrating screen includes sieve body, sieve plate and vibrator.The sieve plate is installed inside the sieve body.The vibrator includes output assembly and input assembly, output assembly is located outside the sieve body, input assembly is located inside the sieve body, and both are set opposite in the two sides of the side wall of sieve body.Output assembly includes magnetic force driving disc, multiple magnetic poles of opposite magnetic properties are alternately provided on the magnetic force driving disc, and it is configured to rotate under the driving of rotating motor, input assembly includes magnetic force driven disc and eccentric block group, both are transmission connection, the magnetic force driven disc is opposite with magnetic force driving disc, and multiple magnetic poles of opposite magnetic properties are alternately provided, eccentric block group is transmission connection with sieve plate, the magnetic force driven disc is used to rotate and drive eccentric block group vibration under the magnetic transmission of magnetic force driving disc, to drive sieve plate vibration.The aluminum powder vibrating screen of the application can independently control non-contact transmission, and is safe and efficient in screening explosion-proof.

Description

Technical Field

[0001] This application relates to the field of aluminum powder manufacturing, and more specifically, to an aluminum powder vibrating screen. Background Technology

[0002] Aluminum powder, as an important industrial raw material, has a wide range of applications in many fields. During the production process of aluminum powder, the uniformity of its particle size distribution has a crucial impact on product quality. To ensure the quality of aluminum powder, precise sieving is necessary. Traditional sieving equipment suffers from problems such as low sieving efficiency and screen clogging, making it difficult to meet the high requirements of modern industrial production for the precision and efficiency of aluminum powder sieving. With the continuous development of industrial technology, the aluminum powder vibrating screen has emerged as a new type of sieving equipment. It utilizes the principle of vibration, using high-frequency vibration of the screen mesh to allow aluminum powder to pass through the screen holes quickly, thereby achieving efficient sieving. Utility Model Content

[0003] This application provides an aluminum powder vibrating screen that can independently control non-contact transmission, and provides safe, efficient, and explosion-proof screening.

[0004] Specifically, this application is implemented through the following technical solution: One aspect of this application provides an aluminum powder vibrating screen, comprising: Sieve body; A sieve plate is installed inside the sieve body; A vibrator includes an output component and an input component, the output component being located outside the screen body, the input component being located inside the screen body, and the input component and the output component being arranged opposite each other on both sides of the side wall of the screen body; The output component includes a magnetic drive disk with multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The magnetic drive disk is configured to rotate under the drive of a rotary motor. The input component includes a magnetic driven disk and an eccentric block assembly. The magnetic driven disk is driven and connected to the eccentric block assembly. The magnetic driven disk faces the magnetic drive disk and has multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The eccentric block assembly is driven and connected to the sieve plate. The magnetic driven disk is used to rotate under the magnetic drive of the magnetic drive disk and drive the eccentric block assembly to vibrate, thereby driving the sieve plate to vibrate.

[0005] Optionally, the outer and inner sides of the sidewall of the screen body are respectively provided with a first mounting groove and a second mounting groove that are directly opposite each other. The magnetic drive disk extends into and is fixed in the first mounting groove, and the magnetic driven disk extends into and is fixed in the second mounting groove. A partition is sealed between the first mounting groove and the second mounting groove, and the partition is a non-magnetic material.

[0006] Optionally, the partition has a size of 3mm and is made of stainless steel.

[0007] Optionally, the multiple magnetic poles with opposite magnetic properties of the magnetic drive disk are arranged alternately in unipolarity along the circumferential direction, that is, the N pole and the S pole are arranged alternately in sequence. The magnetic driven disk has multiple magnetic poles with opposite magnetic properties arranged in bipolar blocks along the circumference, that is, every two adjacent N poles form a first magnetic pole group and every two adjacent S poles form a second magnetic pole group, and the first magnetic pole group and the second magnetic pole group are arranged alternately in sequence.

[0008] Optionally, a limiting groove is formed at one end of the side wall of the sieve plate opposite to the vibrator, one end of the sieve plate is connected to the vibrator for transmission, and the other end of the sieve plate is installed in the limiting groove through an elastic element.

[0009] Optionally, a guide rod is threaded through the other end of the sieve plate, the guide rod is fixed in the limiting groove, and the elastic element includes a first elastic element and a second elastic element. The first elastic element and the second elastic element are respectively located on both sides of the sieve plate and are sleeved on the outside of the guide rod.

[0010] Optionally, the screen plate includes a first screen plate, a second screen plate, and a third screen plate installed inside the screen body along the feeding direction, and the first screen plate, the second screen plate, and the third screen plate are each drivenly connected to a vibrator.

[0011] Optionally, the screen aperture size of the first screen plate is larger than that of the second screen plate, and the screen aperture size of the second screen plate is larger than that of the third screen plate.

[0012] Optionally, the vibration frequency of the first sieve plate is less than that of the second sieve plate, and the vibration frequency of the second sieve plate is less than that of the third sieve plate.

[0013] This application provides an aluminum powder vibrating screen, comprising a screen body, a screen plate, and a vibrator. First, each screen plate is independently equipped with a vibrator, enabling precise individual control of the vibration parameters for each screen plate. This allows the vibration mode to be optimized for aluminum powder of specific particle sizes during the screening process. Second, the output and input components are separately located on opposite sides of the side wall. Each component is equipped with alternating magnetic drive discs and magnetic driven discs with multiple opposite magnetic poles, enabling efficient and non-contact transmission of rotation via magnetic force. This allows the eccentric block assembly, connected to the magnetic driven disc, to reliably drive the screen plate vibration. Furthermore, the magnetic drive disc and rotary motor are located outside the screen body, while the magnetic driven disc and eccentric block assembly are located inside the screen body, forming a non-contact transmission by being positioned opposite each other on opposite sides of the screen body's side wall. This design completely isolates all electrically driven components from the inside of the screen body, physically eliminating the possibility of electrical components coming into contact with the aluminum powder and significantly reducing the risk of explosion. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the interior of an aluminum powder vibrating screen shown in an exemplary embodiment of this application; Figure 2 This is a cross-sectional schematic diagram of the output component and the input component shown in an exemplary embodiment of this application; Figure 3 This is an exploded view of the output component and input component shown in an exemplary embodiment of this application; Figure 4 This is a schematic diagram illustrating a magnetic drive disk and a magnetic driven disk in an exemplary embodiment of this application; Figure 5 This is a schematic diagram illustrating the connection between the sieve plate and the cylinder in an exemplary embodiment of this application.

[0015] Wherein: 100, sieve body; 110, first mounting groove; 120, second mounting groove; 130, partition plate; 140, limiting groove; 150, guide rod; 161, first elastic element; 162, second elastic element; 200, sieve plate; 210, first sieve plate; 220, second sieve plate; 230, third sieve plate; 300, vibrator; 310, output component; 311, magnetic drive disk; 320, input component; 321, magnetic driven disk; 321a, first magnetic pole group; 321b, second magnetic pole group; 322, eccentric block group. Detailed Implementation

[0016] The technical solutions in the embodiments (or "implementations") of this application will be clearly and completely described herein with reference to the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0017] If the embodiments of this application contain terms relating to directional indications or positional relationships (such as up, down, left, right, front, back, inside, outside, top, bottom, center, vertical, horizontal, longitudinal, transverse, length, width, counterclockwise, clockwise, axial, radial, circumferential, etc.), such terms are only used to explain the relative positional relationships and movement of the components in a specific posture (as shown in the attached figures); if the specific posture changes, the directional indications or positional relationships will also change accordingly. Furthermore, the terms "first" and "second" used in the embodiments of this application are only for descriptive convenience and should not be construed as indicating or implying relative importance.

[0018] refer to Figure 1 , Figure 2 and Figure 3 This application provides an aluminum powder vibrating screen, including a screen body 100, a screen plate 200, and a vibrator 300. The screen plate 200 is installed inside the screen body 100. The screen body 100 is used to support the screen plate 200 and provide space for screening aluminum powder. The aluminum powder material enters from the top of the screen body 100, is filtered by the screen plate 200, and is collected from the bottom of the screen body 100. The vibrator 300 includes an output component 310 and an input component 320. The output component 310 is located outside the screen body 100, and the input component 320 is located inside the screen body 100. The input component 320 and the output component 310 are arranged opposite each other on both sides of the side wall of the screen body 100.

[0019] The output component 310 includes a magnetic drive disk 311 with multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The magnetic drive disk 311 is configured to rotate under the drive of a rotary motor. The input component 320 includes a magnetic driven disk 321 and an eccentric block assembly 322. The magnetic driven disk 321 and the eccentric block assembly 322 are connected in a transmission manner, which can be a direct coaxial connection. The eccentric block assembly 322 generates centrifugal force when rotating due to its eccentric structure, thereby causing the screen plate 200 to vibrate. The magnetic driven disk 321 is directly opposite the magnetic drive disk 311 and has multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The eccentric block assembly 322 is connected in a transmission manner to the screen plate 200. This transmission connection can be that the eccentric block assembly 322 serves as a vibration output end, directly rigidly connected to the screen plate 200, or it serves as an output end abutting against the lower side of the screen plate 200. The magnetic driven disk 321 is used to rotate and drive the eccentric block group 322 to vibrate under the magnetic transmission of the magnetic drive disk 311, thereby driving the screen plate 200 to vibrate.

[0020] First, each sieve plate 200 is independently equipped with a vibrator 300, enabling precise and individual control of the vibration parameters of a single sieve plate 200. This allows the vibration mode to be optimized for aluminum powder of a specific particle size during the sieving process. Second, the output component 310 and input component 320 are separately positioned on opposite sides of the sidewall. Each component is equipped with alternating magnetic drive disks 311 and magnetic driven disks 321 with multiple opposing magnetic poles. This allows for efficient and non-contact transmission of rotation via magnetic force, ensuring that the eccentric block assembly 322, which is connected to the magnetic driven disk 321, reliably drives the sieve plate 200 to vibrate. Furthermore, the magnetic drive disk 311 and the rotary motor are located outside the sieve body 100, while the magnetic driven disk 321 and the eccentric block assembly 322 are located inside the sieve body 100. These components are positioned opposite each other on opposite sides of the sidewall of the sieve body 100, forming a non-contact transmission. This design completely isolates all electrically driven components from the interior of the sieve body 100, physically eliminating the possibility of electrical components coming into contact with aluminum powder and significantly reducing the risk of explosion.

[0021] Combination Figure 2 In one embodiment, the outer and inner sides of the sidewall of the screen body 100 are respectively provided with a first mounting groove 110 and a second mounting groove 120 positioned opposite each other. A magnetic drive disk 311 extends into and is fixed in the first mounting groove 110, and a magnetic driven disk 321 extends into and is fixed in the second mounting groove 120. A partition 130, which is a non-magnetic material, is sealed between the first mounting groove 110 and the second mounting groove 120. This embodiment can achieve precise positioning and installation of the magnetic drive disk 311 and the magnetic driven disk 321. The magnetic drive disk 311 is embedded in the first mounting groove 110 and fixed, and the magnetic driven disk 321 is embedded in the second mounting groove 120 and fixed, ensuring axial alignment between the two and effectively improving the magnetic coupling transmission efficiency. The non-magnetic partition 130, which is sealed between the first and second mounting grooves 120, firstly seals and isolates the external motor from the aluminum powder inside the screen body 100, eliminating the risk of aluminum powder explosion. The non-magnetic nature of the partition 130 avoids magnetic interference. The non-magnetic sieve plate 200 can be a stainless steel plate or a ceramic alloy plate. Specifically, the magnetic drive disk 311 and the magnetic driven disk 321 are surrounded by a protective shell, which extends into the first mounting groove 110 and the second mounting groove 120. A mounting bracket can also be fixed between the protective shell and the groove wall of the mounting groove to fix the protective shell and support the mounting groove.

[0022] In one embodiment, the partition 130 has a thickness of 3mm and is made of stainless steel. This 3mm thickness reduces the attenuation of magnetic lines of force as they pass through the partition 130, ensuring the effectiveness and transmission efficiency of the magnetic coupling between the magnetic drive disk 311 and the magnetic driven disk 321, allowing the internal eccentric block assembly 322 to obtain sufficient rotational power. Furthermore, the stainless steel material provides sufficient structural strength and rigidity.

[0023] refer to Figure 4 In one embodiment, the magnetically driven disk 311 has multiple magnetically opposite poles arranged alternately in a unipolar configuration along the circumference, i.e., N poles and S poles are alternately arranged in sequence. The magnetically driven disk 321 has multiple magnetically opposite poles arranged in bipolar blocks along the circumference, i.e., every two adjacent N poles form a first magnetic pole group 321a, and every two adjacent S poles form a second magnetic pole group 321b, with the first magnetic pole group 321a and the second magnetic pole group 321b alternately arranged in sequence.

[0024] The magnetic drive disk 311 employs an alternating unipolar arrangement (NSNS…), forming independent magnetic pole pairs (NS being a pair) on its circumference. The magnetic driven disk 321 uses a unique bipolar block arrangement (NN-SS-NN-SS…), where every two adjacent N or S poles form a magnetic pole block (NN or SS). For example, a rotary motor drives the magnetic drive disk 311 to rotate at a speed of V1, and its changing magnetic field (each magnetic pole pair generates a complete magnetic field change cycle) penetrates the non-magnetic partition 130. To synchronize with the changing magnetic field cycle of the magnetic drive disk 311, the magnetic driven disk 321, possessing a general equivalent magnetic pole unit, must rotate 2 revolutions to experience the same number of magnetic field change cycles, thus being forced to rotate at a speed of 2V1. In this embodiment, through the physical layout of the magnetic poles, a speed ratio of 1:2 between the magnetic drive disk 311 and the magnetic driven disk 321 is achieved without the need for gears or electronic speed regulation, resulting in a simple and reliable structure. This also allows the rotary motor to work more efficiently, ensuring that the internal vibrating components achieve the required higher speeds.

[0025] Combination Figure 5 In one embodiment, a limiting groove 140 is formed at the end of the side wall of the sieve plate 200 opposite to the vibrator 300. One end of the sieve plate 200 is connected to the vibrator 300 for transmission, and the other end of the sieve plate 200 is installed in the limiting groove 140 through an elastic element. Firstly, the limiting groove 140 is used to limit the position of the sieve plate 200, preventing it from detaching significantly during vibration, thus ensuring stable screening. The elastic element has a buffering effect. The sieve plate 200 has inertial force during vibration, which may impact the sieve body 100, reducing screening efficiency and potentially damaging the equipment. The elastic element absorbs the inertial force of the sieve plate 200, reducing impact, and also cushions the sieve plate 200 during vibration, resulting in more uniform vibration and better screening effect.

[0026] In one embodiment, a guide rod 150 is threaded onto the other end of the sieve plate 200. The guide rod 150 is fixed in the limiting groove 140. The elastic element includes a first elastic element 161 and a second elastic element 162, which are located on both sides of the sieve plate 200 and sleeved on the outside of the guide rod 150. The guide rod 150, fixed in the limiting groove 140, provides stable guidance for the movement of the sieve plate 200, ensuring that the sieve plate 200 moves in a predetermined direction during vibration, avoiding lateral displacement or swaying of the sieve plate 200, and further improving the stability of the screening process. The first elastic element 161 and the second elastic element 162, located on both sides of the sieve plate 200 and sleeved on the outside of the guide rod 150, can effectively absorb the inertial force generated by the vibration of the sieve plate 200, reduce the impact of the sieve plate 200 on the sieve body 100, and protect the equipment from damage. The guide rod 150 restricts the displacement of the first elastic element 161 and the second elastic element 162 in their axial direction, preventing the elastic elements from shifting or twisting during the vibration of the screen plate 200, ensuring that the elastic elements always extend and contract along the axial direction, thereby effectively absorbing the inertial force of the screen plate 200 and ensuring the stable vibration of the screen plate 200.

[0027] In one embodiment, the sieve plate 200 includes a first sieve plate 210, a second sieve plate 200, and a third sieve plate 230 installed inside the sieve body 100 along the feeding direction, and each of the first sieve plate 210, the second sieve plate 200, and the third sieve plate 230 is drivenly connected to a vibrator 300. This design enables precise control of the vibration of each sieve plate 200, allowing the vibration frequency and amplitude of each sieve plate 200 to be adjusted individually according to screening requirements and aluminum powder characteristics. By independently adjusting the vibration parameters of each sieve plate 200, the screening effect can be optimized, screening efficiency and precise separation of aluminum powder particle size can be improved. The independent vibrator 300 configuration reduces mutual interference between sieve plates 200, enhances the adaptability and stability of the equipment, reduces maintenance costs, and extends the service life of the equipment.

[0028] In one embodiment, the aperture size of the first sieve plate 210 is larger than that of the second sieve plate 200, and the aperture size of the second sieve plate 200 is larger than that of the third sieve plate 230. This design achieves efficient multi-stage screening. Large-sized aluminum powder is screened out in the first sieve plate 210, reducing the burden on the subsequent sieve plates 200 and lowering the risk of clogging. The second sieve plate 200 and the third sieve plate 230 then sequentially separate smaller-sized aluminum powder, ensuring precise particle size separation and improving screening accuracy.

[0029] In one embodiment, the vibration frequency of the first screen plate 210 is lower than that of the second screen plate 200, and the vibration frequency of the second screen plate 200 is lower than that of the third screen plate 230. Combined with the size gradient of the screen plates 200, the screen apertures are arranged from large to small, and the vibration frequency gradually increases, ensuring that the aluminum powder material undergoes vibrations of different intensities and screening through different apertures during the screening process. Large-sized aluminum powder is rapidly screened on the first screen plate 210, while small-sized aluminum powder passes more easily through smaller apertures under high-frequency vibration, achieving efficient screening and precise separation, thus improving screening efficiency and accuracy. Furthermore, it effectively reduces the accumulation and clogging of large-sized materials on the large-aperture screen plate 200 caused by excessively high vibration frequencies, while also reducing equipment wear caused by excessive vibration, extending the service life of the screen plate 200, and improving the stability and reliability of equipment operation.

[0030] It should be noted that the technical solutions or features described in the above embodiments can be combined or supplemented with each other without conflict. The scope of protection of this application is not limited to the precise structures described in the above embodiments and shown in the accompanying drawings; all modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application.

Claims

1. A vibrating screen for aluminum powder, characterized in that, include: Sieve body (100); A sieve plate (200) is installed inside the sieve body (100); The vibrator (300) includes an output component (310) and an input component (320), the output component (310) being located outside the sieve body (100), the input component (320) being located inside the sieve body (100), and the input component (320) and the output component (310) being arranged opposite each other on both sides of the sidewall of the sieve body (100); The output component (310) includes a magnetic drive disk (311) with multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The magnetic drive disk (311) is configured to rotate under the drive of a rotary motor. The input component (320) includes a magnetic driven disk (321) and an eccentric block assembly (322). The magnetic driven disk (321) is connected to the eccentric block assembly (322) in a transmission manner. The magnetic driven disk (321) is opposite to the magnetic drive disk (311) and has multiple magnetic poles of opposite magnetic polarity alternately arranged on it. The eccentric block assembly (322) is connected to the sieve plate (200) in a transmission manner. The magnetic driven disk (321) is used to rotate and drive the eccentric block assembly (322) to vibrate under the magnetic transmission of the magnetic drive disk (311), thereby driving the sieve plate (200) to vibrate.

2. The aluminum powder vibrating screen as described in claim 1, characterized in that, The outer and inner sides of the sidewall of the sieve body (100) are respectively provided with a first mounting groove (110) and a second mounting groove (120) that are directly opposite each other. The magnetic drive disk (311) extends into and is fixed in the first mounting groove (110), and the magnetic driven disk (321) extends into and is fixed in the second mounting groove (120). A partition (130) is sealed between the first mounting groove (110) and the second mounting groove (120). The partition (130) is a non-magnetic material.

3. The aluminum powder vibrating screen as described in claim 2, characterized in that, The partition (130) has a size of 3mm and is made of stainless steel.

4. The aluminum powder vibrating screen as described in claim 1, characterized in that, The magnetic poles of the magnetic drive disk (311) with opposite magnetic properties are arranged alternately in unipolarity along the circumferential direction, that is, the N pole and the S pole are arranged alternately in sequence. The magnetic driven disk (321) has multiple magnetic poles with opposite magnetic properties arranged in bipolar blocks along the circumference, that is, every two adjacent N poles form a first magnetic pole group (321a), and every two adjacent S poles form a second magnetic pole group (321b). The first magnetic pole group (321a) and the second magnetic pole group (321b) are arranged alternately in sequence.

5. The aluminum powder vibrating screen as described in claim 1, characterized in that, A limiting groove (140) is provided on the side wall of the sieve plate (200) opposite to the vibrator (300). One end of the sieve plate (200) is connected to the vibrator (300) for transmission, and the other end of the sieve plate (200) is installed in the limiting groove (140) through an elastic element.

6. The aluminum powder vibrating screen as described in claim 5, characterized in that, The other end of the sieve plate (200) is provided with a guide rod (150), which is fixed in the limiting groove (140). The elastic element includes a first elastic element (161) and a second elastic element (162). The first elastic element (161) and the second elastic element (162) are located on both sides of the sieve plate (200) and are sleeved on the outside of the guide rod (150).

7. The aluminum powder vibrating screen according to any one of claims 1 to 6, characterized in that, The screen plate (200) includes a first screen plate (210), a second screen plate (200) and a third screen plate (230) installed inside the screen body (100) along the feeding direction, and the first screen plate (210), the second screen plate (200) and the third screen plate (230) are respectively connected to a vibrator (300).

8. The aluminum powder vibrating screen as described in claim 7, characterized in that, The sieve hole size of the first sieve plate (210) is larger than that of the second sieve plate (200), and the sieve hole size of the second sieve plate (200) is larger than that of the third sieve plate (230).

9. The aluminum powder vibrating screen as described in claim 8, characterized in that, The vibration frequency of the first sieve plate (210) is less than that of the second sieve plate (200), and the vibration frequency of the second sieve plate (200) is less than that of the third sieve plate (230).

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