Weight reduction structure of shaft disc of ventilator

Abstract

The utility model discloses a ventilator shaft disc weight reduction structure which comprises a shaft disc body, a through hole penetrating through the shaft disc body is formed in the middle of the shaft disc body, a cavity is formed in the outer side of the interior of the shaft disc body, and the wall thickness of the shaft disc body is consistent, that is, the distances between the outer wall of the shaft disc body and the inner wall of the cavity are equal. According to the ventilator shaft disc weight reduction structure, the wall thickness of the shaft disc body is consistent through the cavity formed in the shaft disc body, so that it is guaranteed that the cooling speeds of the interior and the exterior of a casting are consistent during casting, shrinkage porosity and cracks are avoided, and meanwhile the interior of the shaft disc body is designed into a forming cavity structure under the condition that the wall thickness of the shaft disc is guaranteed; and the integrally formed shaft disc body is high in precision, low in production cost and high in production efficiency, large-batch production can be rapidly completed, the production time is shortened, the production cost is reduced, the market requirement can be met more rapidly, and wide application is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilators, in particular to a weight reduction structure for a ventilator shaft disc. Background Technique

[0002] A ventilator is a machine that relies on the input mechanical energy to increase the gas pressure and discharge the gas. It is a driven fluid machine. There is a shaft disc inside the ventilator.

[0003] When the traditional ventilator shaft disc is designed, the inside of the shaft disc is a solid structure. During casting, due to the solid structure inside, the outside cools quickly while the inside cools slowly, which easily causes internal shrinkage porosity and internal defects. At the same time, during the cooling process, due to the inconsistent cooling speeds of the inside and outside, the casting is prone to casting stress. If annealing treatment is not carried out in time, cracks are likely to occur gradually. For this reason, we propose a weight reduction structure for a ventilator shaft disc. Content of the Utility Model

[0004] The purpose of this part is to outline some aspects of the implementation mode of the utility model and briefly introduce some preferred implementation modes. In this part, as well as in the abstract of the specification and the title of the utility model of this application, some simplifications or omissions may be made to avoid obscuring the purpose of this part, the abstract of the specification and the title of the utility model, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the above and / or existing problems in the ventilator shaft disc, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a weight reduction structure for a ventilator shaft disc. By providing a cavity inside the shaft disc body, the wall thickness of the shaft disc body is made consistent, so as to ensure the same cooling speed of the inside and outside of the casting during casting, thereby avoiding the generation of shrinkage porosity and cracks. At the same time, while ensuring the wall thickness of the shaft disc, the inside of the shaft disc body is designed into a cavity structure, thereby reducing the weight of the shaft disc body.

[0007] To solve the above technical problems, according to one aspect of the present utility model, the following technical solutions are provided:

[0008] A weight reduction structure for a ventilator shaft disc, which includes:

[0009] A shaft disc body, with a through hole penetrating the shaft disc body opened in the middle thereof, and a cavity is opened on the inner and outer sides of the shaft disc body. The wall thickness of the shaft disc body is consistent, that is, the distance from the outer wall of the shaft disc body to the inner wall of the cavity is equal;

[0010] As a preferred scheme of a weight reduction structure for a ventilator shaft disc according to the present utility model, wherein, the shaft disc body is integrally formed.

[0011] As a preferred embodiment of the weight reduction structure of the fan shaft disc described in the present utility model, a reinforcing plate is provided inside the shaft disc body.

[0012] As a preferred embodiment of the weight reduction structure of the fan shaft disc described in the present utility model, a plurality of reinforcing plates are provided, and the plurality of reinforcing plates equally divide the cavity inside the shaft disc body into multiple parts at equal intervals.

[0013] As a preferred embodiment of the weight reduction structure of the fan shaft disc described in the present utility model, the shaft disc body and the reinforcing plate are integrally formed.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows: for this kind of weight reduction structure of the fan shaft disc, the wall thickness of the shaft disc body is made consistent through the cavity opened inside the shaft disc body, so as to ensure the same cooling speed of the inner and outer parts of the casting during casting, thereby avoiding the occurrence of shrinkage porosity and cracks. At the same time, while ensuring the wall thickness of the shaft disc, the inside of the shaft disc body is designed into a cavity structure, thereby reducing the weight of the shaft disc body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the present utility model will be described in detail below with reference to the drawings and specific embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0016] Figure 1 is a three-dimensional structure schematic diagram of a weight reduction structure of a fan shaft disc of the present utility model;

[0017] Figure 2 is a three-dimensional sectional structure schematic diagram of a weight reduction structure of a fan shaft disc of the present utility model;

[0018] Figure 3 is a front sectional structure schematic diagram of a weight reduction structure of a fan shaft disc of the present utility model;

[0019] In the figure: 100, shaft disc body; 101, through hole; 102, cavity; 103, reinforcing plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the above objects, features, and advantages of the present utility model more obvious and understandable, the following detailed description of the specific embodiments of the present utility model will be made with reference to the drawings.

[0021] Secondly, the present utility model will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present utility model in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be locally enlarged in a non-general proportion, and the schematic diagrams are only examples, which should not limit the scope of protection of the present utility model herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0022] To make the objectives, technical solutions, and advantages of the present utility model clearer, the embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] The present utility model provides a weight reduction structure for a ventilator shaft disc. By means of a cavity opened inside the shaft disc body, the wall thickness of the shaft disc body is made uniform, so as to ensure the same cooling speed of the inner and outer parts of the casting during casting, thereby avoiding the generation of shrinkage porosity and cracks. At the same time, while ensuring the wall thickness of the shaft disc, the interior of the shaft disc body is designed into a cavity structure, thereby reducing the weight of the shaft disc body.

[0024] Figures 1 - 3 Shown is a schematic structural diagram of an embodiment of a weight reduction structure for a ventilator shaft disc of the present utility model. Please refer to Figures 1 - 3 In this embodiment, a weight reduction structure for a ventilator shaft disc, its main part includes a shaft disc body 100.

[0025] A through hole 101 penetrating the shaft disc body 100 is opened in the middle of the shaft disc body 100. A cavity 102 is opened on the inner and outer sides of the shaft disc body 100. The wall thickness of the shaft disc body 100 is uniform, that is, the distance from the outer wall of the shaft disc body 100 to the inner wall of the cavity 102 is equal. As a preference, in this embodiment, the shaft disc body 100 is integrally formed. The integrally formed shaft disc body 100 has high precision, low production cost, and high production efficiency. It can quickly complete mass production, reduce production time and cost, can more quickly meet the market demand, and has a wide range of applications. A reinforcing plate 103 is arranged inside the shaft disc body 100. The reinforcing plate 103 arranged inside the shaft disc body 100 strengthens the stability inside the shaft disc body 100, and can effectively extend the service life of the shaft disc body 100. A plurality of reinforcing plates 103 are provided. The plurality of reinforcing plates 103 equally divide the cavity 102 inside the shaft disc body 100 into multiple parts. The plurality of reinforcing plates 103 arranged equidistantly inside the reinforcing plate 103 further strengthen the stability inside the shaft disc body 100, ensuring the service life of the shaft disc body 100. The shaft disc body 100 and the reinforcing plate 103 are integrally formed. The integrally formed shaft disc body 100 and the reinforcing plate 103 have high precision, low production cost, and high production efficiency. It can quickly complete mass production, reduce production time and cost, can more quickly meet the market demand, and has a wide range of applications.

[0026] Combined with Figures 1 - 3, A weight reduction structure for a ventilator shaft disc in this embodiment is specifically used as follows: The cavity 102 opened inside the shaft disc body 100 makes the wall thickness of the shaft disc body 100 uniform. The uniform wall thickness design of the entire shaft disc body 100 facilitates the flow of molten iron during casting. During casting, the shaft disc body 100 with a uniform wall thickness can ensure that the internal and external cooling rates of the casting are the same, thereby avoiding the occurrence of shrinkage porosity and cracks. At the same time, while ensuring the wall thickness of the shaft disc, the internal part of the shaft disc body 100 is designed into a cavity 102 structure, which can effectively reduce the weight of the shaft disc body 100. The entire shaft disc body 100 reduces the machining allowance of the surface during design, thereby shortening the machining time. The integrally formed shaft disc body 100 has high precision, low production cost, and high production efficiency, can quickly complete large-scale production, reduce production time and cost, and can meet the market demand more quickly, and has a wide range of applications.

[0027] Although the present utility model has been described above with reference to the embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present utility model can be combined with each other in any way. The exhaustive description of these combinations is not given in this specification only for the sake of saving space and resources. Therefore, the present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A fan shaft disc weight reduction structure, characterized in that: include: The shaft disc body (100) has a through hole (101) penetrating the shaft disc body (100) in the middle thereof, and a cavity (102) is formed inside and outside the shaft disc body (100). The wall thickness of the shaft disc body (100) is uniform, that is, the distance from the outer wall of the shaft disc body (100) to the inner wall of the cavity (102) is equal.

2. A fan shaft disc weight reduction structure according to claim 1, characterized in that: The shaft disc body (100) is integrally formed.

3. A fan shaft disc weight reduction structure according to claim 1, characterized in that: A reinforcing plate (103) is arranged inside the shaft disc body (100).

4. A fan shaft disc weight reduction structure according to claim 3, characterized in that: A plurality of the reinforcing plates (103) are provided, and the plurality of the reinforcing plates (103) divide the cavity (102) inside the shaft disc body (100) into a plurality of equidistant portions.

5. A fan shaft disc weight reduction structure according to claim 4, characterized in that: The shaft disc body (100) and the reinforcement plate (103) are integrally formed.

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