Pulse type negative pressure vibrating screen

Abstract

The utility model provides a pulse type negative pressure vibrating screen which comprises a vibrating screen frame, an edge covering soft connecting frame, two packaging covers and a negative pressure screen mesh, the vibrating screen frame is installed on an equipment rack in a soft connection mode through the edge covering soft connecting frame, and the two packaging covers are fixedly installed on the vibrating screen frame and the edge covering soft connecting frame; the negative-pressure screen is fixedly mounted on the inner side of the vibrating screen frame; according to the utility model, the innovative edge-covered soft connection frame design is adopted, the traditional rigid connection and elastic connection modes are abandoned, and excellent soft connection is realized. According to the design, the rubber corrugated structure and the spring are combined, the sealing effect is enhanced, the stable vibration frequency is maintained while efficient screening of the vibrating screen is guaranteed, the operation stability of a negative pressure mechanism is guaranteed to the maximum extent, and vibration noise is reduced. Under the action of strong negative pressure, the edge-covered soft connecting frame allows the vibrating screen to perform relative displacement, so that the bad influence is effectively relieved, and the stability and the reliability of the screening equipment are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of negative pressure vibrating screens, in particular to a pulse type negative pressure vibrating screen. Background Art

[0002] Pulse negative pressure vibration equipment is a special screening equipment with many advantages and characteristics. Its working principle mainly relies on vibration and negative pressure adsorption. Vibration produces screening effect, and negative pressure adsorption device is used to adsorb and separate materials. During the screening process, the material is placed on the screen, and then the material is moved on the screen by vibration. Due to the special design of the screen, only material particles that meet the size of the screen aperture can pass through, thus achieving the purpose of screening.

[0003] At present, the installation of vibrating screens mainly relies on two methods: rigid connection and elastic connection. However, both of these connection methods have significant defects. First, their sealing effect is not satisfactory, which affects the working efficiency of the vibrating screen to a certain extent. Secondly, due to the long-term vibration of the equipment, these two connection methods are easily affected, resulting in loose connections, which not only affects the stable operation of the equipment, but may also cause noise pollution in the future, causing adverse effects on the working environment. In addition, when the sealing area under the vibrating screen is in a negative pressure state, the screen will be subjected to a strong negative pressure, causing itself to sag downward significantly. This deformation not only seriously affects the negative pressure screening effect of the screen, making it difficult to achieve the expected screening target, but also causes serious damage to the service life of the screen in the long run.

[0004] Therefore, it is very necessary to invent a pulse type negative pressure vibrating screen. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a pulse type negative pressure vibrating screen, comprising a vibrating screen frame, an edge-wrapped soft joint frame, a packaging cover and a negative pressure screen, wherein the vibrating screen frame is softly connected and installed on the equipment frame through the edge-wrapped soft joint frame, and the packaging cover is fixedly installed on the vibrating screen frame and the edge-wrapped soft joint frame, and a total of two packaging covers are provided; the negative pressure screen is fixedly installed on the inner side of the vibrating screen frame;

[0006] The edging soft joint frame includes an installation outer frame, a supporting spring, an upper corrugated cover plate and a lower corrugated cover plate. The installation outer frame is fixedly connected to the equipment frame. The installation outer frame is elastically connected to the vibration screen frame through the supporting spring. The supporting spring is located between the upper corrugated cover plate and the lower corrugated cover plate. The upper corrugated cover plate and the lower corrugated cover plate are respectively fixedly connected to the installation outer frame and the vibration screen frame. The packaging cover is fixedly installed on the upper and lower surfaces of the installation outer frame respectively.

[0007] Preferably, the mounting outer frame is a rectangular frame structure, the vibration screen frame is located on the inner side of the mounting outer frame, the packaging cover is located between the vibration screen frame and the mounting outer frame, the packaging cover is a rectangular cover made of rubber, and the surfaces of the vibration screen frame, the mounting outer frame and the packaging cover are flush with each other.

[0008] Preferably, four support springs are provided, and the four support springs are arranged at the four corners of the vibrating screen frame and the mounting outer frame, and the support springs are located between the vibrating screen frame and the mounting outer frame and the upper corrugated cover plate and the lower corrugated cover plate.

[0009] Preferably, the upper corrugated cover plate and the lower corrugated cover plate are both rectangular corrugated covers made of four rubber corrugated plates, and the upper corrugated cover plate and the lower corrugated cover plate are encapsulated between the vibration screen frame and the mounting outer frame by the two encapsulation covers.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model abandons the hard connection and elastic connection methods commonly used in traditional technologies, and instead innovatively introduces a soft-joint frame with edge wrapping to achieve a more superior soft connection. This design cleverly combines the rubber corrugated structure and the spring, which not only significantly improves the sealing effect, but also ensures that the vibrating screen maintains its original vibration frequency while efficiently screening. In this way, the operating stability of the entire equipment and the negative pressure mechanism is maximized, and the noise pollution caused by unstable connections caused by vibration is effectively reduced. In addition, when the vibrating screen is subjected to strong negative pressure, the soft-joint frame with edge wrapping can play its unique advantages. It allows the vibrating screen to be relatively displaced to a certain extent, thereby effectively alleviating the adverse effects of negative pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 It is a schematic diagram of the explosion structure of the utility model.

[0014] Figure 3 It is a schematic diagram of the local structure of the utility model after section.

[0015] In the figure:

[0016] Vibrating screen frame 1, edging soft joint frame 2, mounting outer frame 21, supporting spring 22, upper corrugated cover plate 23, lower corrugated cover plate 24, packaging cover 3, negative pressure screen 4. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0018] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.

[0019] As attached Figure 1 To Attachment Figure 3 As shown:

[0020] The utility model provides a pulse type negative pressure vibration screen, comprising a vibration screen frame 1, an edge-wrapped soft joint frame 2, a packaging cover 3 and a negative pressure screen 4. The vibration screen frame 1 is softly connected and installed on an equipment frame through the edge-wrapped soft joint frame 2. The packaging cover 3 is fixedly installed on the vibration screen frame 1 and the edge-wrapped soft joint frame 2, and there are two packaging covers 3 in total; the negative pressure screen 4 is fixedly installed on the inner side of the vibration screen frame 1, and the vibration screen frame 1 and the negative pressure screen 4 are vibration screens of pulse type negative pressure vibration equipment.

[0021] The edging soft-joint frame 2 includes an installation outer frame 21, a support spring 22, an upper corrugated cover plate 23 and a lower corrugated cover plate 24. The installation outer frame 21 is fixedly connected to the equipment frame. The installation outer frame 21 is elastically connected to the vibration screen frame 1 through the support spring 22. The support spring 22 is located between the upper corrugated cover plate 23 and the lower corrugated cover plate 24. The upper corrugated cover plate 23 and the lower corrugated cover plate 24 are respectively fixedly connected to the installation outer frame 21 and the vibration screen frame 1. The packaging cover 3 is fixedly installed on the upper and lower surfaces of the installation outer frame 21 respectively. The soft connection mode realized by the edging soft-joint frame 2 enables the vibration screen to better adapt to various vibrations and displacements during operation, thereby maintaining a stable screening effect.

[0022] Embodiment 1:

[0023] Specifically, the mounting outer frame 21 is a rectangular frame structure, which can effectively support and fix the vibration screen frame 1, ensuring the structural stability and screening efficiency of the entire screening equipment. The vibration screen frame 1 is located on the inner side of the mounting outer frame 21, and plays a role of sealing and fixing. The packaging cover 3 is located between the vibration screen frame 1 and the mounting outer frame 21. The packaging cover 3 is a rectangular cover made of rubber. The surfaces of the vibration screen frame 1, the mounting outer frame 21 and the packaging cover 3 are flush with each other. The planar design of the three can not only avoid obstruction of the vibration screening movement path of the material, causing accumulation and leakage of the material, but also make the entire device look neater.

[0024] Specifically, four support springs 22 are provided, and the four support springs 22 are arranged at the four corners of the vibrating screen frame 1 and the mounting outer frame 21. This layout not only makes the supporting force evenly distributed and improves the stability of the overall structure, but also can effectively reduce the stress concentration phenomenon caused by vibration and extend the service life of the screening equipment. The support springs 22 are located between the vibrating screen frame 1 and the mounting outer frame 21 and the upper corrugated cover plate 23 and the lower corrugated cover plate 24.

[0025] Specifically, the upper corrugated cover plate 23 and the lower corrugated cover plate 24 are both rectangular corrugated covers made of four rubber corrugated plates. The upper corrugated cover plate 23 and the lower corrugated cover plate 24 are encapsulated between the vibrating screen frame 1 and the mounting outer frame 21 by the two encapsulation covers 3. This design not only ensures the overall strength and stability of the cover plate, but also the rubber corrugated plate itself has good elasticity and sealing properties, and cooperates with the encapsulation cover 3 to effectively achieve relative displacement when the vibrating screen is subjected to strong negative pressure.

[0026] Embodiment 2:

[0027] First, when the pulse negative pressure vibrating screen starts working, the external exciting force acts on the vibrating screen frame 1, causing it to vibrate. The support spring 22 in the edge-wrapped soft joint frame 2 plays a key role in buffering and vibration reduction between the vibrating screen frame 1 and the mounting outer frame 21. The support spring 22 adopts a four-corner layout to ensure that the supporting force is evenly distributed, thereby improving the stability of the overall structure. When the vibrating screen frame 1 is vibrated, the support spring 22 can absorb and disperse part of the vibration energy and reduce the impact of vibration on the screening equipment. At the same time, the upper corrugated cover plate 23 and the lower corrugated cover plate 24 are important components of the edge-wrapped soft joint frame 2. They are fixedly connected to the vibrating screen frame 1 and the mounting outer frame 21 to form a closed structure. The two corrugated cover plates are made of rubber corrugated plates and have good elasticity and sealing. When the vibrating screen frame 1 vibrates, the upper corrugated cover plate 23 and the lower corrugated cover plate 24 can move with the vibrating screen frame 1, and at the same time use their elasticity to absorb vibration energy, further reducing the impact of vibration on the screening equipment. The packaging cover 3 is located between the vibration screen frame 1 and the mounting outer frame 21, and is made of rubber with good sealing performance. The setting of the packaging cover 3 not only enhances the sealing performance of the edge soft joint frame 2 to prevent material leakage, but also has a certain buffering effect on the vibration of the vibration screen frame 1, and cooperates with the support spring 22, the upper corrugated cover plate 23 and the lower corrugated cover plate 24 to effectively achieve relative displacement when the vibration screen is subjected to strong negative pressure.

[0028] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A pulsed negative pressure vibrating screen, characterized in that: The invention comprises a vibrating screen frame (1), an edge-wrapped soft-joint frame (2), a packaging cover (3) and a negative pressure screen (4); the vibrating screen frame (1) is installed on an equipment frame through a soft connection of the edge-wrapped soft-joint frame (2); the packaging cover (3) is fixedly installed on the vibrating screen frame (1) and the edge-wrapped soft-joint frame (2); and a total of two packaging covers (3) are provided; and the negative pressure screen (4) is fixedly installed on the inner side of the vibrating screen frame (1); The edge-wrapped flexible joint frame (2) comprises an installation outer frame (21), a support spring (22), an upper corrugated cover plate (23) and a lower corrugated cover plate (24); the installation outer frame (21) is fixedly connected to an equipment frame; the installation outer frame (21) is elastically connected to the vibration screen frame (1) via the support spring (22); the support spring (22) is located between the upper corrugated cover plate (23) and the lower corrugated cover plate (24); the upper corrugated cover plate (23) and the lower corrugated cover plate (24) are respectively fixedly connected to the installation outer frame (21) and the vibration screen frame (1); and the packaging cover (3) is respectively fixedly installed on the upper and lower surfaces of the installation outer frame (21).

2. A pulsed negative pressure vibrating screen as claimed in claim 1, characterized in that: The mounting outer frame (21) is a rectangular frame structure, the vibration screen frame (1) is located inside the mounting outer frame (21), the packaging cover (3) is located between the vibration screen frame (1) and the mounting outer frame (21), the packaging cover (3) is a rectangular cover made of rubber, and the surfaces of the vibration screen frame (1), the mounting outer frame (21) and the packaging cover (3) are flush with each other.

3. A pulsed negative pressure vibrating screen as claimed in claim 1, characterized in that: Four support springs (22) are provided, and the four support springs (22) are arranged at four corners of the vibration screen frame (1) and the mounting outer frame (21). The support springs (22) are located between the vibration screen frame (1) and the mounting outer frame (21) and the upper corrugated cover plate (23) and the lower corrugated cover plate (24).

4. A pulsed negative pressure vibrating screen as claimed in claim 1, characterized in that: The upper corrugated cover plate (23) and the lower corrugated cover plate (24) are both rectangular corrugated covers made of four rubber corrugated plates. The upper corrugated cover plate (23) and the lower corrugated cover plate (24) are encapsulated between the vibration screen frame (1) and the mounting outer frame (21) by the two encapsulation covers (3).

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