CN202165313U

CN202165313U - Impeller

Info

Publication number: CN202165313U
Application number: CN2011202138747U
Authority: CN
Inventors: 王宇星; 景晓明; 卢进
Original assignee: China Aircraft Power Machinery Institute
Current assignee: China Aircraft Power Machinery Institute
Priority date: 2011-06-22
Filing date: 2011-06-22
Publication date: 2012-03-14
Anticipated expiration: 2021-06-22

Abstract

The utility model relates to an impeller, which comprises a shaft, a wheel disc connected with the shaft, and a blade connected with the wheel disc, which are all integrally molded. Since a connecting piece for connection is not required additionally, the mounting structure and the assembly procedure of the impeller are simplified.

Description

Impeller

Technical field

The utility model relates to mechanical field, especially, relates to a kind of axial-flow blower.

Background technique

The impeller of axial flow compressor generally is made up of blade, wheel disc, axle or axle journal and some parts of obturaging.In the present structural type, blade, wheel disc and axle journal mostly are independent manufacturing.Link together through bolt, pin, welding or links such as spline and bolt between each part.Problems such as these links have increased the complexity of number of parts and structure, and assembling is inconvenient, cause part to cooperate the interface many, and assembly error is wayward.

The model utility content

The utility model purpose is to provide a kind of impeller of simple in structure, easy assembling, to solve complex structure in the existing technology, the inconvenient problem of assembling.

Be to realize above-mentioned purpose, this enforcements is novel to provide a kind of impeller, comprises that one, one wheel disc and that is connected in axle is connected in the blade of wheel disc, spool, wheel disc and blade be one-body molded.

Preferably, axle is provided with some circle-arc teeth near the end face of wheel disc, and circle-arc tooth forms an arc end gear in the said end of axle.

Preferably, axle in axial direction is provided with a tapped hole.

Preferably, axle is axially arranged with some flutings away from an end of arc end gear, and fluting connects with tapped hole.

Preferably, axle is provided with some pores near the wheel disc place, and pore and tapped hole connect.

Preferably, pore is the through hole of inclination.

Preferably, the periphery of axle is provided with spline.

Compare existing technology, the axle of the impeller of the utility model, wheel disc and blade are one-body molded, need not to establish in addition link and connect, and have simplified mounting structure and linkage editor.

Description of drawings

The Figure of description that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:

Fig. 1 is the schematic perspective view of the impeller of the utility model preferred embodiment;

Fig. 2 is the schematic perspective view of the impeller of the utility model preferred embodiment; And

Fig. 3 is the cross-sectional schematic of impeller of the utility model preferred embodiment of Fig. 1.

Embodiment

Need to prove that under the situation of not conflicting, embodiment and the characteristic among the embodiment among the application can make up each other.Below with reference to accompanying drawing and combine embodiment to specify the utility model.

Please combine referring to figs. 1 through Fig. 3, the utility model impeller preferred embodiments comprises one 10, the periphery of an end of axle 10 outwards is convexly equipped with wheel disc 20 that forms and the some blades 30 that extended by wheel disc 20 certainly.

Axle 10 is axially arranged with a tapped hole 12 along it.When this impeller is applied to an axial flow compressor, through this tapped hole 12 this impeller is connected in the pull bar of axial flow compressor, with this impeller tension.Axle 10 end faces near the end that blade 30 is set are provided with some circle-arc teeth, thereby form an arc end gear 14 (see figure 2)s in this end of axle 10.Arc end gear 14 is used to connect other impeller.According to the needs that use, but this periphery machine shaping spline of 10, so that axle 10 is connected with transmission system.Axle 10 ends away from arc end gear 14 are axially arranged with some flutings 16.These flutings 16 all connect with tapped hole 12.Axle 10 is provided with some near wheel disc 20 places and tapped hole 12 connects pores 18.These pores 18 are the through hole of inclination.

Axle 10, wheel disc 20 and the blade 30 of this impeller processes through an integral body forging and pressing blank is carried out accurate digital control.This axle 10, wheel disc 20 and blade 30 are formed in one, and need not to connect through link, have simplified mounting structure and linkage editor.In addition, blade 30 is processed into through accurate digital control, and machining accuracy is high.When this impeller is installed on axial flow compressor, be convenient to control the gap between impeller and the casing, reduced assembly error, improved the performance of axial flow compressor.

The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.

Claims

1. an impeller comprises

One;

One is connected in the wheel disc of said axle; And

One is connected in the blade of said wheel disc;

It is characterized in that: said axle, said wheel disc and said blade are one-body molded.

2. impeller according to claim 1 is characterized in that: said axle is provided with some circle-arc teeth near the end face of said wheel disc, and said circle-arc tooth forms an arc end gear in the said end face of said axle.

3. impeller according to claim 2 is characterized in that: said axle in axial direction is provided with a tapped hole.

4. impeller according to claim 3 is characterized in that: said axle is axially arranged with some flutings away from an end of said arc end gear, and said fluting and said tapped hole connect.

5. impeller according to claim 3 is characterized in that: said axle is provided with some pores near said wheel disc place, and said pore and said tapped hole connect.

6. impeller according to claim 5 is characterized in that: said pore is the through hole of inclination.

7. impeller according to claim 1 is characterized in that: the periphery of said axle is provided with spline.