Impeller shaft disc for fan assembly

Abstract

The impeller shaft disc comprises a shaft disc body, a driving shaft and impeller blades, a mounting hole matched with the driving shaft is formed in the center of the shaft disc body, a key groove is formed in the mounting hole, mounting grooves are evenly distributed in the periphery of the shaft disc body, and the mounting grooves are matched with the tail ends of the impeller blades in shape. Positioning protrusions are arranged on the two sides of the mounting groove, positioning grooves are correspondingly formed in the tail ends of the impeller blades, and the positioning protrusions are connected with the positioning grooves. The positioning device has the beneficial effects that accurate positioning of the driving shaft and the impeller shaft disc as well as the impeller blades and the shaft disc body is realized, the accuracy of fan assembly is greatly improved, and the assembly error is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan assembly technical field, specifically, relate to a kind of impeller shaft disc for fan assembly. BACKGROUND

[0002] In the fan assembly process, impeller shaft disc is the key component connecting impeller and driving shaft, and its performance and structural design directly affect the operating efficiency and stability of fan. The traditional impeller shaft disc has problems such as complicated installation and inaccurate positioning during assembly, resulting in low overall assembly efficiency of fan. In addition, due to the unstable connection between the shaft disc and the impeller and the driving shaft, looseness, wear and other conditions are likely to occur during long-term operation, affecting the service life and working performance of the fan. SUMMARY

[0003] To overcome the deficiencies of the prior art, the utility model provides an impeller shaft disc for fan assembly, which reduces the risk of looseness during operation, improves the reliability of fan operation, and solves the problem of unstable connection between the shaft disc and the impeller and the driving shaft, which is likely to cause looseness, wear and other conditions, affecting the service life and working performance of the fan.

[0004] To achieve the above-mentioned technical effects, the utility model adopts the following specific technical solutions:

[0005] It comprises a shaft disc body, a driving shaft and impeller blades, the shaft disc body is provided with a mounting hole matched with the driving shaft at the center, a key groove is provided in the mounting hole, the outer periphery of the shaft disc body is uniformly distributed with mounting grooves, the mounting grooves are matched in shape with the ends of the impeller blades, positioning protrusions are provided on both sides of the mounting grooves, and positioning recesses are correspondingly provided at the ends of the impeller blades, the positioning protrusions are connected with the positioning recesses.

[0006] Further, a sealing rubber ring groove is provided at the mounting connection between the shaft disc body and the impeller blades, and a sealing rubber ring is installed in the sealing rubber ring groove.

[0007] Further, the driving shaft is connected in the mounting hole, and a positioning groove is provided at the end of the driving shaft, which corresponds to the key groove.

[0008] Further, the mounting hole is connected with the driving shaft in interference.

[0009] Further, a positioning pin is provided in the key groove, and the positioning pin is arranged in the installation cavity formed by the key groove and the positioning groove.

[0010] Further, a plurality of uniformly distributed fastening bolt holes are further provided on the shaft disc body, the impeller blades are fastened to the shaft disc body through the fastening bolt holes, and an anti-loose thread is provided in the fastening bolt hole.

[0011] Further, the positioning protrusion and the groove are welded.

[0012] Compared with the prior art, the impeller shaft disc for fan assembly has the following beneficial effects:

[0013] The unique installation hole key groove design, the positioning protrusion of the impeller blade installation groove and the positioning groove cooperation realize the accurate positioning of the driving shaft and the impeller shaft disc and the impeller blade and the shaft disc body, greatly improve the accuracy of fan assembly, and reduce the assembly error. The sealing rubber ring effectively protects the connection part, prolongs the service life of the impeller shaft disc and the fan, the design of the anti-loose thread enhances the connection stability of the fastening bolt, reduces the risk of loosening in the running process, and improves the reliability of the fan operation. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0015] Figure 1 is a structural schematic view of the present application;

[0016] Figure 2 is a structural schematic view of the shaft disc body 1;

[0017] Figure 3 is a plan view of corresponding 2;

[0018] Figure 4 is a connection schematic view of the positioning protrusion 51 and the positioning groove 61 of the present application;

[0019] Figure 5 is Figure 4 a plan view of corresponding 2.

[0020] In the figure: shaft disc body 1, driving shaft 2, installation hole 3, key groove 4, installation groove 5, positioning protrusion 51, impeller blade 6, positioning groove 61, sealing rubber ring groove 7, fastening bolt hole 11. DETAILED DESCRIPTION

[0021] To further illustrate the embodiments, the utility model provides has the drawing, these drawings are the utility model disclosure content a part, it mainly used to illustrate the embodiment, and can cooperate the related description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn in proportion, and similar component symbols are usually used to indicate similar components.

[0022] According to the embodiment of the utility model, a kind of impeller shaft disc for fan assembly is provided.

[0023] The utility model is further illustrated by combining with the drawings and specific embodiments, as Figures 1-5 As shown in the utility model embodiment, a kind of impeller shaft disc for fan assembly, it includes shaft disc main body 1, driving shaft 2 and impeller blade 6, the shaft disc main body 1 center is equipped with the installation hole 3 with driving shaft 2 cooperation, installation hole 3 is equipped with keyway 4, the outer periphery of shaft disc main body 1 is evenly distributed with installation groove 5, installation groove 5 and the shape of the end of impeller blade 6 are matched, the both sides of installation groove 5 are equipped with positioning protrusion 51, and the end of impeller blade 6 is equipped with positioning recess 61 correspondingly, and positioning protrusion 51 is connected with positioning recess 61.

[0024] In an embodiment, the installation connection of the shaft disc main body 1 and the impeller blade 6 is equipped with sealing rubber ring groove 7, and sealing rubber ring is loaded in sealing rubber ring groove 7. Dust, impurities and the like are prevented from entering the connecting part, to affect the connection stability.

[0025] In an embodiment, the driving shaft 2 is connected in installation hole 3, and the end of the driving shaft 2 is provided with a positioning groove, and the positioning groove corresponds to the keyway 4.

[0026] In an embodiment, the installation hole 3 is connected with the driving shaft 2 by interference.

[0027] In an embodiment, the keyway 4 is provided with a positioning pin, and the positioning pin is arranged in the installation cavity formed by the keyway 4 and the positioning groove.

[0028] In an embodiment, the shaft disc main body 1 is also provided with a plurality of uniformly distributed fastening bolt holes 11, and the impeller blade 6 is fastened on the shaft disc main body 1 through the fastening bolt holes 11, and the fastening bolt hole is provided with an anti-loosening thread. Prevent fastening bolt from loosening.

[0029] In an embodiment, the positioning protrusion 51 and the recess 61 are weldedly connected.

[0030] Working principle: insert the driving shaft 2 into the mounting hole 3 of the shaft disc body 1, the positioning pin is arranged in the installation cavity formed by the key groove 4 and the positioning groove and cooperates with the key groove 4, the preliminary positioning of the shaft disc body 1 and the driving shaft 2 is completed. The root of the impeller blade 6 is aligned with the mounting groove 5 on the shaft disc body 1, the positioning convex 51 is tightly matched with the positioning recess 61, the positioning of the impeller blade 6 is realized. The sealing rubber ring is installed in the sealing rubber ring groove 7, then the impeller blade 6 is fixed on the shaft disc body 1 through the fastening bolt, the fastening bolt is tightened, and the firm connection is ensured.

[0031] In the utility model, unless another definite provision and limitation, the terms "mount", "set", "connect", "fix", "screw" and so on should do the broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be directly connected, also can be indirectly connected through the intermediate medium, can be the communication or the interaction relationship of two elements of two elements inside, unless another definite limitation, for the ordinary skilled in the art, can understand the specific meaning of the above terms in the utility model according to specific circumstances.

[0032] The above only is the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An impeller shaft disc for wind turbine assembly, characterized in that: It includes a shaft disk body (1), a drive shaft (2) and impeller blades (6). The shaft disk body (1) has a mounting hole (3) at its center that mates with the drive shaft (2). A keyway (4) is provided in the mounting hole (3). Mounting grooves (5) are evenly distributed on the outer periphery of the shaft disk body (1). The mounting grooves (5) match the end shape of the impeller blades (6). Positioning protrusions (51) are provided on both sides of the mounting grooves (5). Positioning grooves (61) are provided at the end of the impeller blades (6). The positioning protrusions (51) are connected to the positioning grooves (61).

2. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: The mounting connection between the shaft disk body (1) and the impeller blade (6) is provided with a sealing rubber ring groove (7), and a sealing rubber ring is installed in the sealing rubber ring groove (7).

3. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: The drive shaft (2) is connected in the mounting hole (3), and the end of the drive shaft (2) is provided with a positioning groove, which corresponds to the keyway (4).

4. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: The mounting hole (3) is interference-fitted with the drive shaft (2).

5. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: A positioning pin is provided in the keyway (4), and the positioning pin is located in the mounting cavity formed by the keyway (4) and the positioning groove.

6. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: The shaft disk body (1) is also provided with a plurality of evenly distributed fastening bolt holes (11), through which the impeller blades (6) are fastened to the shaft disk body (1), and the fastening bolt holes are provided with anti-loosening threads.

7. The impeller shaft disc for wind turbine assembly according to claim 1, characterized in that: The positioning protrusion (51) is welded to the groove (61).

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