High-strength casing of horizontal screw centrifuge

By incorporating reinforcing ribs and sound-absorbing sponges within the casing of the horizontal screw centrifuge, and employing a specific noise reduction mechanism to connect the external pipes, the problems of easy casing deformation and high noise levels have been solved, achieving both high strength and noise reduction.

CN224208242UActive Publication Date: 2026-05-08NANJING DAMIN MASCH MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NANJING DAMIN MASCH MFG CO LTD
Filing Date
2025-07-05
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

The casing of existing horizontal screw centrifuges is easily deformed when bumped, which can damage internal components and cause loud noise during operation.

Method used

A cavity is set inside the casing and reinforced with fixed connections. Combined with sound-absorbing foam, the outer pipe is connected to the casing through a specific noise reduction mechanism. A sealing plate is used to reduce resonance and noise transmission.

Benefits of technology

It improves the impact resistance of the casing, reduces operating noise, protects internal components, and creates a quiet operating environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of machine shells, in particular to a high-strength machine shell of a horizontal screw centrifuge, which comprises a machine shell body, a reinforcing piece is fixedly connected on the machine shell body, one end of the machine shell body is movably connected with an external pipe, and the external pipe and the machine shell body are jointly connected with a second noise reduction mechanism and a first noise reduction mechanism. The second noise reduction mechanism and the first noise reduction mechanism are the same in structure, and the second noise reduction mechanism and the first noise reduction mechanism are symmetrically arranged. According to the high-strength machine shell of the horizontal screw centrifugal machine, the cavity is formed in the machine shell body, the reinforcing ribs are fixedly connected to the inner wall of the cavity, the machine shell body is reinforced under the supporting of the reinforcing ribs, and therefore the anti-collision effect is improved; and the noise generated during the operation of the whole equipment can be reduced.
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Description

Technical Field

[0001] This utility model relates to the field of casing technology, and in particular to a high-strength casing for a horizontal screw centrifuge. Background Technology

[0002] Application No. 202120762634.6 discloses a high-strength noise-reducing centrifugal fan, including a base plate, a support base fixedly connected to the top of the base plate, a motor fixedly connected to the rear side of the top of the support base by bolts, and a centrifuge housing driven by the output end of the motor... In this patent, the structure of the housing is simple, and when it encounters an impact, the housing is easily deformed after being hit, thereby causing damage to the internal components and resulting in economic losses to the enterprise. Therefore, we have introduced a high-strength housing for a horizontal screw centrifuge. Utility Model Content

[0003] The main objective of this invention is to provide a high-strength casing for a horizontal screw centrifuge, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A high-strength casing for a horizontal screw centrifuge includes a casing body, a reinforcing member fixedly connected to the casing body, an external pipe movably connected to one end of the casing body, and a second noise reduction mechanism and a first noise reduction mechanism connected together with the external pipe and the casing body. The second noise reduction mechanism and the first noise reduction mechanism have the same structure and are symmetrically arranged.

[0006] Preferably, the second noise reduction mechanism includes an outer frame, which is a "U"-shaped structure with an internal hollow structure. A sealing plate is fixedly connected to the inner wall of the outer frame. Rubber layers are fixedly connected to the upper and lower ends of the sealing plate and the inner wall of the outer frame. Two second circular grooves are opened on the upper left side of the sealing plate, and two through-hole first circular grooves are opened on the upper left side of the outer frame.

[0007] Preferably, the diameters of the two first circular grooves are both larger than the diameters of the two second circular grooves, and the positions of the two first circular grooves correspond to the positions of the two second circular grooves.

[0008] Preferably, a second connector is fixedly connected to the lower end of the outer pipe, and a first connector is fixedly connected to one end of the housing body. Mounting holes are provided at the four corners of the upper end of the first connector and the four corners of the upper end of the second connector.

[0009] Preferably, the outer frame is interlocked with the second connector and the first connector, and the sealing plate is located between the second connector and the first connector.

[0010] Preferably, the housing body has a cavity, the inner wall of the cavity is fixedly connected with a reinforcing rib, and a sound-absorbing sponge is inserted into the reinforcing rib.

[0011] Preferably, the cavity is not in communication with the internal cavity of the housing body.

[0012] This utility model has the following beneficial effects:

[0013] In this utility model, by opening a cavity inside the housing body and fixing reinforcing ribs to the inner wall of the cavity, the housing body is reinforced under the support of the reinforcing ribs, thereby improving the impact resistance. Since the gaps between the reinforcing ribs are filled with sound-absorbing sponge, the noise generated during the operation of the entire device can be reduced.

[0014] In this utility model, by setting a second noise reduction mechanism, when the outer pipe and the housing body need to be connected, the outer frame is inserted between the second connector and the first connector. The sealing plate in the second circular groove is located between the first connector and the second connector. The second connector, the first connector and the sealing plate are connected by bolts. Due to the action of the sealing plate, the resonance caused by the direct contact between the second connector and the first connector can be reduced. Furthermore, the outer frame wraps around the second connector and the first connector, which further improves the noise reduction effect. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the high-strength casing of a horizontal screw centrifuge according to the present invention;

[0016] Figure 2 This is a cross-sectional structural diagram of the high-strength casing of a horizontal screw centrifuge according to the present invention.

[0017] Figure 3 This is a schematic diagram of the overall structure of the reinforcing ribs and sound-absorbing sponge of the high-strength casing of a horizontal screw centrifuge according to this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the second noise reduction mechanism of the high-strength casing of a horizontal screw centrifuge according to this utility model.

[0019] In the diagram: 1. Housing body; 2. Reinforcing component; 3. No. 1 noise reduction mechanism; 4. External pipe; 5. No. 2 noise reduction mechanism; 11. Cavity; 12. Sound-absorbing sponge; 13. Reinforcing rib; 14. First connector; 41. Mounting hole; 42. Second connector; 51. Outer frame; 52. No. 1 circular groove; 53. Sealing plate; 54. No. 2 circular groove; 55. Rubber layer. Detailed Implementation

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A high-strength casing for a horizontal screw centrifuge includes a casing body 1, a reinforcing member 2 fixedly connected to the casing body 1, an external pipe 4 movably connected to one end of the casing body 1, and a second noise reduction mechanism 5 and a first noise reduction mechanism 3 connected together with the external pipe 4 and the casing body 1. The second noise reduction mechanism 5 and the first noise reduction mechanism 3 have the same structure and are symmetrically arranged.

[0025] In this embodiment, the second noise reduction mechanism 5 includes an outer frame 51, which has a "U"-shaped structure and an internal hollow structure. A sealing plate 53 is fixedly connected to the inner wall of the outer frame 51. A rubber layer 55 is fixedly connected to the upper and lower ends of the sealing plate 53 and the inner wall of the outer frame 51. Two second circular grooves 54 are opened on the upper left side of the sealing plate 53, and two through-hole first circular grooves 52 are opened on the upper left side of the outer frame 51. The diameter of the two first circular grooves 52 is larger than the diameter of the two second circular grooves 54, and the positions of the two first circular grooves 52 correspond to the positions of the two second circular grooves 54. A second connector 42 is fixedly connected to the lower end of the outer pipe 4, and a first connector 14 is fixedly connected to one end of the housing body 1. Mounting holes 41 are opened at the four corners of the upper end of the first connector 14 and the four corners of the upper end of the second connector 42. The outer frame 51 is interlocked with the second connector 42 and the first connector 14, and the sealing plate 53 is located between the second connector 42 and the first connector 14.

[0026] In this embodiment, a cavity 11 is opened inside the housing body 1, and a reinforcing rib 13 is fixedly connected to the inner wall of the cavity 11. A sound-absorbing sponge 12 is inserted inside the reinforcing rib 13; the cavity 11 is not connected to the inner cavity of the housing body 1.

[0027] It should be noted that this utility model describes a high-strength casing for a horizontal screw centrifuge. A cavity 11 is carefully opened inside the casing body 1, and reinforcing ribs 13 are fixedly connected to the inner wall of the cavity 11. These reinforcing ribs 13 are like a sturdy skeleton inside the casing, and are evenly and reasonably distributed in various places on the inner wall of the cavity 11. When the casing is impacted by external force, the reinforcing rib 13 can quickly disperse the impact force and provide strong support for the casing body 1. The casing body 1 is significantly reinforced under the support of the reinforcing rib 13, thereby greatly improving the impact resistance of the casing and effectively protecting the precision components inside the casing from damage. The gaps between the reinforcing ribs 13 are carefully filled with sound-absorbing sponge 12. The sound-absorbing sponge 12 has a unique porous structure that can efficiently absorb and attenuate sound energy. When the sound waves generated during the operation of the equipment enter the casing, the sound-absorbing sponge 12 will quickly capture these sound waves and convert them into heat energy and other forms of energy, thereby reducing the noise generated during the operation of the entire equipment and creating a quieter and more comfortable operating environment for users. When the external pipe 4 needs to be connected to the casing body 1, we have adopted a precise and reliable connection scheme. First, the outer frame 51 is precisely inserted between the second connector 42 and the first connector 14. This operation requires precise control of the position and angle of the outer frame 51 to ensure the stability of the subsequent connection. At this time, the sealing plate 53 located in the second circular groove 54 is precisely positioned between the first connector 14 and the second connector 42. The sealing plate 53 is made of a special material with good elasticity and sealing performance. Next, the second connector 42, the first connector 14, and the sealing plate 53 are tightly connected together with bolts. In this process, the sealing plate 53 plays an important role, effectively reducing the resonance phenomenon generated when the second connector 42 and the first connector 14 are in direct contact. Resonance not only generates additional noise but may also damage the connection parts. The presence of the sealing plate 53 acts like a buffer, absorbing and dispersing vibration energy and reducing the probability of resonance. At the same time, the outer frame 51 completely encloses the second connector 42 and the first connector 14, forming a relatively closed space, further preventing the propagation of sound, thereby further improving the noise reduction effect and ensuring that the equipment is quieter and more stable during operation.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A high-strength casing for a horizontal decanter centrifuge, comprising a casing body (1), characterized in that: The housing body (1) is fixedly connected to a reinforcement member (2). One end of the housing body (1) is movably connected to an external pipe (4). The external pipe (4) and the housing body (1) are connected together to a second noise reduction mechanism (5) and a first noise reduction mechanism (3). The second noise reduction mechanism (5) and the first noise reduction mechanism (3) have the same structure and are symmetrically arranged.

2. The high-strength casing of a horizontal screw centrifuge according to claim 1, characterized in that: The second noise reduction mechanism (5) includes an outer frame (51), which is a "U" shaped structure and has an internal hollow structure. A sealing plate (53) is fixedly connected to the inner wall of the outer frame (51). A rubber layer (55) is fixedly connected to the upper end, lower end and inner wall of the outer frame (51). Two second circular grooves (54) are opened on the upper left side of the sealing plate (53), and two first circular grooves (52) are opened on the upper left side of the outer frame (51).

3. The high-strength casing of a horizontal screw centrifuge according to claim 2, characterized in that: The diameters of the two No. 1 circular grooves (52) are both larger than the diameters of the two No. 2 circular grooves (54), and the positions of the two No. 1 circular grooves (52) correspond to the positions of the two No. 2 circular grooves (54).

4. The high-strength casing of a horizontal screw centrifuge according to claim 1, characterized in that: The lower end of the outer pipe (4) is fixedly connected to a second connector (42), and one end of the housing body (1) is fixedly connected to a first connector (14). Mounting holes (41) are opened at the four corners of the upper end of the first connector (14) and the four corners of the upper end of the second connector (42).

5. The high-strength casing of a horizontal screw centrifuge according to claim 2, characterized in that: The outer frame (51) is interlocked with the second connector (42) and the first connector (14), and the sealing plate (53) is located between the second connector (42) and the first connector (14).

6. The high-strength casing of a horizontal screw centrifuge according to claim 1, characterized in that: The housing body (1) has a cavity (11) inside, and a reinforcing rib (13) is fixedly connected to the inner wall of the cavity (11). Sound-absorbing sponge (12) is inserted inside the reinforcing rib (13).

7. The high-strength casing of a horizontal screw centrifuge according to claim 6, characterized in that: The cavity (11) is not connected to the inner cavity of the casing body (1).

Citation Information

Patent Citations

  • High-strength noise reduction centrifugal fan

    CN214465171U