New fan housing

Abstract

The utility model discloses a novel fan casing, including a fan tail casing. The fan tail casing is designed as a circular structure, and the interior of the fan tail casing is designed as a hollow structure. A casing mounting seat is integrally formed on the outer wall of the tail end of the fan tail casing, and two groups of circular arc reinforcement rings are fixedly installed on one side of the casing mounting seat and located on the outer wall of the fan tail casing by welding. The two groups of circular arc reinforcement rings are distributed in a mirror-symmetrical manner through the circle points of the fan tail casing, and the circular arc reinforcement ring is away from one side of the casing mounting seat and is located on the outer surface of the fan tail end and is fixedly installed with a first step by welding. A number of evenly distributed supporting steel columns are fixedly installed on the outer wall of the first step by welding, and the number of supporting steel columns is not less than six. The number of supporting steel columns are distributed in a circle with equal spacing through the circle points of the fan tail casing. The utility model can effectively increase the overall metal thickness of the fan tail casing, has the use characteristics of thickened protection, can effectively improve the impact resistance of the tail of the fan tail casing, and has good structural strength.

Description

Technical Field

[0001] The utility model relates to a shell, in particular to a novel fan shell, and belongs to the technical field of fan accessories. Background Art

[0002] A fan is a machine that relies on input mechanical energy to increase gas pressure and deliver gas. It is a driven fluid machine. Fan is the customary abbreviation for gas compression and gas delivery machinery in China. The fans usually refer to ventilators, blowers, and wind turbines.

[0003] Fans are widely used in ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and air induction of boilers and industrial furnaces; cooling and ventilation in air conditioning equipment and household appliances; drying and conveying of grains, wind tunnel wind sources and inflation and propulsion of hovercraft, etc.

[0004] When the fan starts to work, the vibration of the bearing is very small. However, as the running time increases, the dust in the fan will adhere to the impeller unevenly, gradually destroying the dynamic balance of the fan and gradually increasing the vibration of the bearing. Once the vibration reaches the maximum value of 11mm / s allowed by the fan (the maximum allowable value expressed by amplitude value is as follows), the fan must be shut down for repair (remove dust accumulation and redo dynamic balance);

[0005] Most of the existing fans are equipped with a shell for synchronous use during production and use. However, most of the existing fan shells are simple metal shells without any reinforced protection structure. Therefore, there is a technical problem of poor impact resistance. When subjected to external impact or collision, the shell is very likely to deform and dent, which may affect the normal balanced rotation of the fan and the service life of the fan. Therefore, the utility model proposes a new fan shell with external protection and high strength. Utility Model Content

[0006] The utility model provides a novel fan casing, which is used to solve the problems raised in the background technology.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0008] The novel fan casing of the utility model comprises a fan tail casing, which is designed as a circular structure, and the interior of the fan tail casing is designed as a hollow structure, a shell mounting seat is integrally formed on the outer wall of the tail end of the fan tail casing, two groups of arc-shaped reinforcement rings are fixedly installed on one side of the shell mounting seat and located on the outer wall of the fan tail casing by welding, and the two groups of arc-shaped reinforcement rings are distributed in a mirror-symmetrical manner through the circle points of the fan tail casing, the arc-shaped reinforcement ring is away from one side of the shell mounting seat and is located on the outer surface of the tail end of the fan and is fixedly installed with a first step by welding, and a number of evenly distributed supporting steel columns are fixedly installed on the outer wall of the first step by welding, the number of the supporting steel columns is not less than six, and the several supporting steel columns are distributed in a circle with equal spacing through the circle points of the fan tail casing.

[0009] Furthermore, in order to improve the structural strength, a plurality of the supporting steel columns are commonly connected to a secondary step at one end away from the primary step, and the secondary step and the plurality of supporting steel columns are fixedly connected by welding.

[0010] Furthermore, in order to further improve the structural strength of the fan housing, a number of evenly distributed reinforcing steel blocks are fixedly installed on the outer wall of the secondary step away from the supporting steel column by welding, and the several reinforcing steel blocks are distributed in a circle with equal intervals through the secondary step points.

[0011] Furthermore, in order to facilitate the connection work to the outside, a connection steel ring is fixedly installed by welding between the ends of several of the reinforcing steel blocks away from the secondary step, and an external fan cover is fixedly installed by welding on the outer wall of the connection steel ring.

[0012] Furthermore, in order to describe the structural dimensions of the external fan cover, the external fan cover adopts a conical structure design, and the interior of the external fan cover is a hollow structure.

[0013] Furthermore, in order to improve the front structural strength of the outer fan cover, a protective outer ring is fixedly installed on the outer wall of the outer fan cover, and a protective inner ring is fixedly installed inside the protective outer ring and on the outer wall of the outer fan cover.

[0014] Furthermore, in order to improve the impact resistance and structural strength of the four corners of the external fan cover, the protective outer ring is a square ring with arc-shaped structural design at its four corners, and the protective inner ring adopts a circular structural design. Fan-shaped angle steels are fixedly installed between the four corners of the protective outer ring and the protective inner ring.

[0015] Compared with the prior art, the utility model provides the following beneficial effects:

[0016] The utility model provides an arc-shaped reinforcement ring at the tail end of the fan tail shell, and the arc-shaped reinforcement ring can be directly fixedly contacted with the fan tail shell and encircled on the outer wall of the fan tail shell, thereby effectively increasing the overall metal thickness of the fan tail shell, having the use characteristics of thickening protection, effectively improving the impact resistance of the tail of the fan tail shell, and having good structural strength;

[0017] At the same time, by setting a first step and a second step in the middle of the fan tail shell, respectively, supporting steel columns and reinforcing steel blocks are fixedly installed on the first step and the second step, respectively, the middle part of the fan tail shell can be protected by a partition-type guardrail through the setting of the supporting steel columns and the reinforcing steel blocks, so that the impact resistance of the middle part of the fan tail shell can be improved through the supporting steel columns and the reinforcing steel blocks. When the fan tail shell is impacted, the force will first act on the supporting steel columns and the reinforcing steel blocks, and the supporting steel columns and the reinforcing steel blocks are used as force-bearing structures for support, which has certain impact resistance and deformation resistance effects;

[0018] By arranging a protective outer ring and a protective inner ring on the outer fan cover, and fixing fan-shaped angle steels between the four corners of the protective outer ring and the protective inner ring, the fan-shaped angle steels can improve the impact resistance protection effect at the four corners of the outer fan cover. It has good corner structural strength, strong practicality, effectively avoids stress deformation at the corners, and has good structural protection performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a left-side stereoscopic structural schematic diagram of the utility model;

[0021] Figure 2 It is a schematic diagram of the back three-dimensional structure of the utility model;

[0022] Figure 3 It is a front planar structural schematic diagram of the utility model;

[0023] Figure 4 It is a schematic diagram of the back plane structure of the utility model.

[0024] In the figure: 1. Fan tail casing; 2. Casing mounting seat; 3. Arc-shaped reinforcement ring; 4. First step; 5. Support steel column; 6. Second step; 7. Reinforcement steel block; 8. Connecting steel ring; 9. External fan cover; 10. Protective outer ring; 11. Protective inner ring; 12. Fan-shaped angle steel. DETAILED DESCRIPTION

[0025] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0026] According to an embodiment of the utility model, a novel fan casing is provided.

[0027] The present invention is now further described in conjunction with the accompanying drawings and specific implementation methods. Figure 1-4 As shown, according to the embodiment of the utility model, the new fan casing includes a fan tail casing 1, the fan tail casing 1 is a circular structure design, and the interior of the fan tail casing 1 is a hollow structure design, a casing mounting seat 2 is integrally formed on the outer wall of the tail end of the fan tail casing 1, two groups of circular arc reinforcement rings 3 are fixedly installed on one side of the casing mounting seat 2 and located on the outer wall of the fan tail casing 1 by welding, and the two groups of circular arc reinforcement rings 3 are distributed in a mirror-symmetrical manner through the circle point of the fan tail casing 1, the circular arc reinforcement ring 3 is away from the side of the casing mounting seat 2 and is located on the outer surface of the tail end of the fan and is fixedly installed with a first step 4 by welding, and a number of evenly distributed supporting steel columns 5 are fixedly installed on the outer wall of the first step 4 by welding, the number of supporting steel columns 5 is not less than six, and the number of supporting steel columns 5 are distributed in a circle with equal spacing through the circle point of the fan tail casing 1.

[0028] In one embodiment, the ends of the plurality of support steel columns 5 away from the primary step 4 are commonly connected to the secondary step 6 , and the secondary step 6 and the plurality of support steel columns 5 are fixedly connected by welding.

[0029] In one embodiment, a plurality of evenly distributed reinforcing steel blocks 7 are fixedly installed by welding on the outer wall of the secondary step 6 on the side away from the supporting steel column 5 , and the plurality of reinforcing steel blocks 7 are distributed in a circle with equal intervals through the points of the secondary step 6 .

[0030] In one embodiment, a connecting steel ring 8 is fixedly installed between the ends of a plurality of reinforcing steel blocks 7 away from the secondary step 6 by welding, and an outer fan cover 9 is fixedly installed on the outer wall of the connecting steel ring 8 by welding.

[0031] In one embodiment, the outer fan cover 9 adopts a conical structure design, and the interior of the outer fan cover 9 is a hollow structure.

[0032] In one embodiment, a protective outer ring 10 is fixedly mounted on the outer wall of the outer fan cover 9 , and a protective inner ring 11 is fixedly mounted inside the protective outer ring 10 and on the outer wall of the outer fan cover 9 .

[0033] In one embodiment, the protective outer ring 10 is a square ring with four arc-shaped corners, the protective inner ring 11 is circular, and fan-shaped angle steels 12 are fixedly installed between the four corners of the protective outer ring 10 and the protective inner ring 11 .

[0034] Working principle: The utility model can install the motor used in the fan assembly structure by setting the fan tail housing 1, so that the motor used in the fan can be installed inside the fan tail housing 1, and the fan blades can be installed at the output end of the fan. After installation, the fan blades are placed inside the outer fan cover 9, so that the installation work of the entire fan assembly can be completed to ensure its normal use;

[0035] The utility model provides an arc-shaped reinforcement ring 3 at the tail end of the fan tail housing 1, and the arc-shaped reinforcement ring 3 can be directly fixedly contacted with the fan tail housing 1 and surround the outer wall of the fan tail housing 1, thereby effectively increasing the overall metal thickness of the fan tail housing 1, having the use characteristics of thickening protection, and effectively improving the impact resistance of the tail of the fan tail housing 1, and having good structural strength;

[0036] At the same time, by respectively arranging a first-level step 4 and a second-level step 6 in the middle of the fan tail shell 1, a support steel column 5 and a reinforcement steel block 7 are respectively fixedly installed on the first-level step 4 and the second-level step 6, and the middle part of the fan tail shell 1 can be protected by a partition-type guardrail by the arranged support steel column 5 and the reinforcement steel block 7, so that the impact resistance of the middle part of the fan tail shell 1 can be improved by the support steel column 5 and the reinforcement steel block 7. When the fan tail shell 1 is impacted, the force will first act on the support steel column 5 and the reinforcement steel block 7, and the support is provided by the support steel column 5 and the reinforcement steel block 7 as a force-bearing structure, which has a certain impact resistance and deformation resistance effect;

[0037] By providing a protective outer ring 10 and a protective inner ring 11 on the outer fan cover 9, and fixing fan-shaped angle steels 12 between the four corners of the protective outer ring 10 and the protective inner ring 11, the fan-shaped angle steels 12 can improve the impact resistance protection effect at the four corners of the outer fan cover 9, have good corner structural strength, strong practicality, effectively avoid stress deformation at the corners, and have good structural protection performance.

[0038] To sum up, with the help of the above-mentioned technical solution of the utility model, the technical problem in the background technology that "most of the existing fan casings are simple metal outer casings without any reinforced protection structure, and therefore have poor impact resistance. When subjected to external impact or collision, the casing is very likely to be deformed or dented, which may affect the normal balanced rotation of the fan and affect the service life of the fan" is solved.

[0039] In the present utility model, unless otherwise clearly specified and limited, the terms "installation", "setting", "connection", "fixation", "screwing" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; 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 the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly limited, ordinary technicians in this field can understand the specific meanings of the above terms in the present utility model according to the specific circumstances. The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A new fan housing, characterized in that: The invention comprises a fan tail shell (1), wherein the fan tail shell (1) is of a circular structure design, and the interior of the fan tail shell (1) is of a hollow structure design, a shell mounting seat (2) is integrally formed on the outer wall of the tail end of the fan tail shell (1), two groups of arc-shaped reinforcement rings (3) are fixedly installed by welding on one side of the shell mounting seat (2) and located on the outer wall of the fan tail shell (1), and the two groups of arc-shaped reinforcement rings (3) are distributed in a mirror-symmetrical manner through the circle point of the fan tail shell (1), and a first step (4) is fixedly installed by welding on the outer surface of the fan tail end away from the side of the shell mounting seat (2), and a plurality of uniformly distributed support steel columns (5) are fixedly installed by welding on the outer wall of the first step (4), and the number of the support steel columns (5) is not less than six, and the plurality of support steel columns (5) are distributed in a circumferential manner with equal spacing through the circle point of the fan tail shell (1).

2. The novel fan housing according to claim 1 is characterized in that: The ends of the plurality of support steel columns (5) away from the primary step (4) are commonly connected to a secondary step (6), and the secondary step (6) and the plurality of support steel columns (5) are fixedly connected by welding.

3. The novel fan housing according to claim 2 is characterized in that: A plurality of evenly distributed reinforcing steel blocks (7) are fixedly mounted on the outer wall of the secondary step (6) on the side away from the supporting steel column (5) by welding, and the plurality of reinforcing steel blocks (7) are distributed in a circle at equal intervals through the points of the secondary step (6).

4. The novel fan housing according to claim 3 is characterized in that: A connecting steel ring (8) is fixedly installed between the ends of the plurality of reinforcing steel blocks (7) away from the secondary step (6) by welding, and an outer fan cover (9) is fixedly installed on the outer wall of the connecting steel ring (8) by welding.

5. The novel fan housing according to claim 4 is characterized in that: The outer fan cover (9) adopts a conical structure design, and the interior of the outer fan cover (9) is a hollow structure.

6. The novel fan housing according to claim 5 is characterized in that: A protective outer ring (10) is fixedly mounted on the outer wall of the outer fan cover (9), and a protective inner ring (11) is fixedly mounted inside the protective outer ring (10) and located on the outer wall of the outer fan cover (9).

7. The novel fan housing according to claim 6 is characterized in that: The protective outer ring (10) is a square ring, and its four corners are designed as arc-shaped structures. The protective inner ring (11) adopts a circular structure design. Fan-shaped angle steels (12) are fixedly installed between the four corners of the protective outer ring (10) and the protective inner ring (11).

Images